Muscle spasms

My muscle spasms are severe when I'm walking I can be sitting down and get a severe muscle spasms in the back of my thigh my calf I get up it's excruciating it feels like I ripped my back of my thigh the front of my thigh to sit down get up my my calves my ankles my feet my ankles literally turn in the spasms are so bad soon as I walk a lot I'm on my work I'm on my feet 12 hours standing exercising lifting I do I lift and do heavy work sometimes or I stand Lots my legs swell really bad but as soon as I relax I get severe it's like my muscles they vibrate severe muscle spasms incredible I just I lay in bed and I'm afraid to move because as soon as I move I get a spasm but I get them while I'm laying in bed you can feel them in your groin area and I do get them in the stomach I get them in my hands their excruciating I've tried pickle juice I take 10 mg of Baclofen I've had to up that I take like two or three because it's just so severe you feel like phone ain't hurting phone emergency yeah I can't move I can't stretch I can't point my toe I can't do anything and the moment I stopped to relax it's it's horrible I try to electrolytes what else can I do is this part of myasthenia gravis