Will it get easier?

Some times it is so hard to stay positive.  Especially when you are so tired and you slept terrible.  I try so hard to embrace where I am today and not live in the past.  Most days I do a great job.  Then, every now and then, I get incredibly sad.  I sang with my husband at Church on the Beach this weekend.  I used to be an Ocean Lifeguard.  It was weird to sit on the beach and watch the water and know that I can no longer do what I did for 20 years.  The smells, the memories, the sense of accomplishment and pride I used to feel.  I was sad yesterday.  I miss being able to run or walk with out worrying I will fall.  I miss being sore from working out.  The only time I am pain is because of MS.  I hate feeling like a prisoner in my body.  I miss being able to do things and not get overtired.  Today I am sad.