feel muscle loss in my fingers legs shoulders & arms . i can still use them except my fingers dont move as fast , they feel weak and i feel no feeling in my muscles but they still work . what should i do ?
Meat, glorious meat. From grassfed ruminants. And lots of it (or at least 3 palm sided portions a day).
That said, loss of sensation/weakness in fingers sounds like neuropathy - this might be caused by a lack of B vitamins (B6, B12), as well as an overdose of B vitamins, so it's hard to tell which, especially if you feel actual numbness or tingling.
It can also be caused by lots of other factors that may reveal nerve damage and/or muscle damage, hence CD's comment about seeing a doctor is very much what you should do. It might even be low blood pressure, or a lack of magnesium, potassium or salt.