I am a 38 year old female just recently diagnosed with inflammatory arthritis. My rheumatologist wants to wait for a specific diagnosis (he thinks it could be psoriatic or rheumatoid). Either way, my inflammatory markers were high and I'm having a lot of symptoms (similar to MS). I am feeling a great amount of muscle fatigue in my arms (mostly) and my legs. Is this normal with inflammatory arthritis? I am having trouble lifting my arms, writing, buttoning, etc. I also have joint pain, but it is minor compared to the muscle fatigue. It feels like I've been lifting weights and have hit "muscle failure". I am also having tremors/shaking. Is this normal?