Feels like I ripped a muscle-dietary???

I feel like I ripped my calf muscle. Sharp tear feeling. I thought it was just a sore leg but it happened in my shoulder now too. I am taking a water pill so I have to watch dehydration more and potassium. I think I have been careful but was wondering if it could be dehydration still. Any other nutritional ideas?

Thanks but it is less cramping as a sharp pain followed by soreness with some sharpness. I'll think about the tonic though