I Am A 62 Year Old Male, Currently Being Treated

I am a 62 year old male, currently being treated for FSGS, dx 1989, experiencing electrical sensations throughout my body radiating from my upper torso down through my legs and feet. I'm presently taking clonidine, hydralazine, carvedilol (?) Mirapex (RLS), doxazosin(?) hctz, and Lasix. Concurrently I have gained approx. 25lbs in the past 3 months after maintaining the same weight for over 35 years. Can you give me some idea about what may be happening. My current PCP appears disingenuous and uninterested in my complaints.