Hi. Thanks for your query. Noted the history and understood your concerns. Such a long and strange lump going from the umbilicus to the right breast, of the size of a pencil can be due to idiopathic Phlebo-thrombosis of the vein. There is no known reason why does this occur, but is common only in females hence connected to the hormonal effects. The treatment is non-specific in the form of local Thrombophob ointment, Anti-inflammatory medications. No need to add on antibiotic unless there is strong inflammation or chance of pus formation. Do not fondle the area. Do not massage this. Get an ultrasound and color doppler to get the proper diagnosis.