Leg Cramps

Anyone else dealing with severe leg cramps? I get Charlie horses every single night/morning and the cramp stays for a minute or so to where I almost am bawling. Got one 2 days ago and am unable to use my right leg at all (I've limped ever since) and I can't get the pain to subside. I've read water & potassium help so they're less severe, but I'm also worried about DVT since it is also causing bulgy veins/etc and that can be deadly. Anyone else dealing with this? Suggestions?