Hello, I Have Been Having Leg Spasms Which Includes My

Hello, I have been having leg spasms which includes my toes also for the last week. It comes while sleeping or sitting. I have a past history with DVT & PE on the left side. This is really painful only when the spasm or Charley Horse comes on. My leg gets lock in a drawn position against my buttocks. It takes everything I have to pull it away and walk it out. Could you help with maybe why these are suddenly starting to happen. Every night for the last 8 days I awaken with severe pain. I also have severe pain in the left side of my stomach, closer to like the ovaries area. It's so sharp it makes me bend over with pain. Thank you. for any information.