Hello, I was in Cuba about a month ago and there was a lot of walking involved, no problems. On my 3 hour flight home, during the landing, I had a bad muscle cramp on the lower left side of my calf on the left leg. It was stiff and sore after, so when I got off the plane I checked it out. I noticed a small lump just under where the cramp had occurred. My wife thought it was a DVT. So i whent for two ultrasounds different days and a blood test. Nothing came up. It has been a month now and the lump is still there, longer instead of a bump, the calf get stiff with exercise and a bit sore, also sometimes I has smaller muscle spams in the same spot. Any idea? Thank you. Justin.