Dealing with Chronic Pain and Uncertainty

Was in the hospital for a week back in October after having severe full body pain and muscle weakness to the point I couldn’t walk. (I had been experiencing his for a while, but it got significantly worse during this time) I had a lot of different symptoms but those were the main ones that brought me in. After running some blood tests and observing me they couldn’t figure anything and just said I had fibromyalgia and sent me home. The symptoms decreased a few weeks after getting sent home back to my normal amount of pain so I just kind of dealt with it. But now it’s flaring up again and I’m starting to pay closer attention to symptoms other than the pain. The pain is really bad again but the weakness in my legs is worse than last time to the point where I’m considering getting a mobility aide. Also once in a while during my flareup I’m getting like electrical shocks and muscle spasms up my right arm and shoulder. My vision keeps getting really blurry and I keep seeing double, but these symptoms seem to come and go. I just got my eyes checked like a month ago and everything is fine so I find it really weird. I’m super duper fatigued and don’t feel rested even if I have 12 hours of sleep. Also I’m really dizzy a lot and keep getting vertigo, might be from the fatigue though. I would usually contribute these things to the fibro and just move on, but my family keeps telling me to go to another doctor and tell them about these other symptoms because apparently we have multiple sclerosis in our family and these symptoms are more related to that vs the fibro.