Found A 1inch Raised Lump On Lower Arm Approx 1mth

Found a 1inch raised lump on lower arm approx 1mth ago massage it and it disappeared but left large circular bruise then felt raised area in left side neck which moved to chest on left centre side then to right groin area over a weeks time . Groin area was very painful but subsided in 24 hr but returned in groin again but severly5 days later and could barely move around with 2 canes took ASA and pain disapated in 3-4 days and could feel leg is left with edema like feeling discontinued synthroid thinking may be allergy and had a lot of anxiety when the feeling in my toes was not right seems better but not much swelling has gone even with water pills