Pain (burning, some sharp pain) right above my right ankle and going about halfway up the calf. Feels like a twisting. Hurts most when sitting - particularly driving. Feels somewhat better when leg stretched out straight or walking. Mild swelling in ankle at beginning of the day. Now wearing elastic stocking, but swelling increases through the day. Calf noticeably swollen at night. If must sit, pain works its way up the leg to the knee and sometimes the back of the thigh. Very uncomfortable. Extra-strength Tylenol and prescription anthritic meds (Lodine, etc) are ineffective. Have