I am dealing with a crazy situation at work, and I need some advice.

First, some background information relating to this post.

I was assigned to a different location through my employer, a parking company, for 6 years. I worked as a visitor parking attendant at a university. My immediate supervisor worked for the parking company. I also reported to the client supervisor at the university. At one point during my stay at the university the parking office took over the responsibility of the visitor parking garage. When I started working at the university, the visitor parking garage was one level. A couple of years after the parking office took over the responsibility of the visitor parking garage, that garage was renovated to include 2 additional levels. While that garage was being renovated, visitor parking was moved to the faculty/staff garage, which was adjacent to visitor parking. I was expected to assist customers at the window of the visitor parking booth, which was located outside the visitor parking garage, as well as customers who either 1) had difficulty exiting the garage because the token that they were given or purchased did not work or 2) pulled up to the wrong entrance gate and had to be turned around. There were times when I would be assisting a customer at the visitor parking booth when either number one or number two happened. There was a call box at each gate, but the parking office did not want to get any phone calls regarding customers having difficulty. I was supposed to prevent that from happening. I was supposed to assist the customer at the visitor parking booth window as well as the customer who was having difficulty all at the same time. I could not do that, and when the parking office received a phone call from the call box, I would get a phone call from them. I would let the person calling know that I was assisting a customer at the visitor parking booth window, but the person calling still was not happy. The client supervisor ended up calling my direct supervisor about this many times complaining to him about it. I was eventually written up for this by my immediate supervisor. This was a stressful time for me, and it got to be too much for me to handle. This was part of the reason why I ended up going to a counselor who noticed that I was a highly sensitive person. She agreed that 1) I or anyone else could not satisfy the clients unreasonable demands and 2) nothing good came from being written up for not being able to meet the clients unreasonable demands. The university ended their contract with my employer in 2012.

In 2013 I was transferred to an area of parking garages managed by my employer. I work as a porter. I was first assigned to clean 2 parking garages. Then I was transferred to 2 different parking garages as well as a parking lot several months later. Earlier this year I was transferred to 2 different parking garages as well as a parking lot. Employees have quit the past several months. My employee has tried to find replacements, but either 1) the prospective employee already accepted another job, 2) the employee only lasts a couple of days or 3) the employee is fired within their 90 day probationary period. I have been asked to pick up the slack by dividing my time among 4 parking garages and between 2 parking lots during my 8 hour shift. I have been doing this for a while, but it has been exhausting. Plus I can only physically do so much in an 8 hour shift. And the area manager over one set of parking garages has not been happy with my work. He called me last week at work on the work cell phone that was given to me and this is what happened. He told me 1) I did not do anything when I cleaned those 2 parking garages, 2) he expects me to do x, y and z, and 3) he does not want to have a meeting with me regarding my not meeting his expectations. He also asked me exactly what did I do. I explained to him exactly what I did that day. I also have to fill out a check list stating what I do and put it in his box in the main office, which I do. Apparently it was not what he wanted. I was upset about that. I became unbalanced. I had to take time away from my job to compose myself. I told my mom what happened, and she suggested that I write down on paper exactly what I do, the fact that I clean 4 garages and 2 parking lots when I am asked to divide my time, and the fact that I can only physically do so much in an 8 hour shift. I did that last week, and I stapled the note to the check list that I put in his box. He called me today to let me know that 1) he read my note, 2) he showed it to his immediate supervisor plus the supervisor at the other set of parking garages that I clean, and 3) I am still expected to perform to his expectations. He also told me that if there is anything I need or want him to know to let him know.

I also injured my right foot, but I do not know how that happened. I made a doctor appointment last week for today. My temperature was within normal range but my blood pressure was elevated but within normal range. I e-mailed him to let him know what happened at the doctor office as well as the fact that my blood pressure was elevated but within normal range. His response was he was glad that everything was ok but was my injury work related.

I know that I cannot keep on cleaning 4 parking garages as well as 2 parking lots in one day and deal with him when he is not happy for too long.

I am a private person when it comes to my HSP. No one at work knows about this.

I am trying to do whatever it takes to protect myself from getting too stressed out and unbalanced on a weekly basis. How should I deal with my employer as well as the male supervisor mentioned in this post?