any advice with my symptoms?

i have had fibromyalgia for 7 years and now recently have started having nerve pain in my legs, weakness in arms after i have lifted anything, extreme tiredness, pains in my head and eye pain, weakness in legs if i walk up stairs, pins and needles in feet if elevated and the odd times and tingling hands. these are all new symptoms this year and ive been to the doctors but hes sure its not m.s related. im only 23 and noone is listening to my worries… could this be m.s or am i overreacting?