 [ Symptoms ] i have severe pain and swelling in my buttock groin thigh and calf [ Disease ] depending on your age and physical status and activity this would either be signs of lumbar disc lesion or deep venous thrombus… you will need to do mri on back and dopplex on calf muscles to figure it out redness and swelling in calf will be dvt numbness and pain would indicate disc lesion see a neurologist …