I can relate. My body changed alot also. It was hard to tell as I was preg & had a colon infection that caused mr to loose wieght after baby, So I lost all the baby wieght and then this strange stuff started with the twitching and thigh tiredness. My body was normal (size4), then I lost almost 10 pounds in like a week and half! I then noticed that my thigh's (more of thr right) was indented in and my calves had shrank super fast--it left strectch marks! Then I saw in feet and hands, then lo' and behold my fanny was gone! I am like you, I always lose and gain in my bust and tummy, so this was wierd. I have NEVER had a flat behind. My hands hurt sometimes when working in kitchen or pushing the stroller. I think it is because the muscle is gone. My feet hurt if i wear high heels, and I have always worn heels! My feet ache bad now, so I only wear sometimes--this is a good season for me with flats being back in style.
My face has gotten thinner also. My twitching/cramp feeling was in my jaw, and my chin is alot more pointy then before and my eyes twiched bad and they seem thinner. * I brought photos to my neuro and she just said, you look tired in some of them and rested in others! My family says it is age...ok
just a warning...I was nervous about the wieght loss so I went on a mission to see if I could gain it back. WELL, I did. 14 pound over the summer. Guess what, It did not appear back like it normally would/ It only came back in my middle. Butt still gone and legs still small. So now I have a pot belly.....sad. And I have exercise intolerance, so this is a mess. Again, good thing pheasent tops are in style, these trends suit my new body---flat shoes with roomy tops!
I wish luck,
So, I get alot of limb jerking when laying in bed, it has gotten better but the twitching is still there.