@Carseatmama : Well yes I have felt it for the last many years but mine is not as bad as holding a pen, I can recall I have had a very hard time with push ups in my teens although I have improved this, I am 32 and can manage about 15-20 push up's but then I always still feel that I don't have anything left in my arms, and not just arms, the story is same with most of my body, B complex at night has given me a good relief, I sleep well for the last 10 days and my energy level is better when I wake up, I have had terrible mornings but I can see a lot of improvement in this, I am working at this formula:
1) better sleep -> means-> less fatigue and more energy
so again its important how well do you sleep, I have had a sleep of very few hours earlier and the sleep was not at all deep, I could feel that at night I was in a state that I am not full asleep with 25% of my eyes opening since my body doesn't really go to sleep, B complex capsules have made a great difference and I have diagnosed fibromyalgia after 19 odd years, its been just 15 days but I can see a lot of improvement, my advice is to just work on your vitamin deficiency as your starting point, good luck with your recovery.
Cheers
Rahul