Pain is exhausting.

I feel as though it draws the life out of me. I feel like I'm doggie paddling some days so I don't drown in it. Plus for some reason I've been forgetting to take my afternoon meds a lot of days....until the pain is so bad it's hard to breathe!
I'm supposed to visit my older son, his wife and their 2 children in Florida next month. Casey (my son) was relocated down there 2 yrs. ago and this will be my first visit to see them. They come up to visit a few times a year, but he's been asking me to come down since the move. While I'm really looking forward to it (Casey and I were always tight and are very much alike) I'm getting a little worried because we haven't spent much time together in the last 2 years, and I don't think he realizes how badly the pain effects me now. My other 2 children live close by and have a better grasp of it. Especially my daughter Shannon who I talk with daily and see at least once or twice a week. Casey is a vice pres. for a financial company and works about 80hrs. a week, traveling about 50% of the time all over the US. He has managed to take the week off that we'll be there which is a big deal. Now I'm afraid if I can't do everything he's got planned he'll be disappointed. I was a single mom from the time my children were preschoolers, and I overheard them more than once telling their friends "my mom can do ANYTHING!". That's how they saw me while they were young and I felt good about that. Things got pretty desperate sometimes and I never wanted them to worry so I put on a brave front and always told them things would be fine...and I made sure they were! I worked 2 jobs most of the time and did some free-lance art work at home when I could. I fixed whatever broke in the house, did all the yard work, and helped out at school events. I didn't sleep much back then! LOL! I was someone far removed from who I am today, and I guess I'm just worried about how Casey will react to the "new" me. My body and the pain has gotten a lot worse since we spent any real time together. I think I may feel better if I send him an email before going down to explain to him what my situation is now. I mean, we talk on the phone a few times each month but we usually talk about the kids and what's going on in his life.
Then again...maybe I'm just embarrassed to have him see me this way.