Hi, I am a previously healthy 28 yo female. Two weeks ago, the external jugular on the left side of my neck began to increase in size. It stands out about a centimetre, and extends almost to the jaw line. When I take a deep breath, it goes down, but quickly reaccumulates. It is worse at night, to the point where I am finding it difficult to lie down and sleep. It is not visible in the morning when I am standing, but shows if I sit, lean forward or lay down. I have had a neck ultrasound which showed increased pulsatility throughout my venous system, and an echo which showed mild tricuspid regurgitation, and trivial regurg in the pulmonic and mitral valve. My question is: is it likely that mild trucuspid regurg is enough to produce this effect, and if so, is it anything to be concerned about? Should I see a cardiologist? If there is any obstruction, would it have shown up on the two tests I have mentioned? I am on no medications, have no family history of heart disease. I occasionally get palpitations, otherwise I would say I was asymptomatic except for general fatigue...I do have low iron secondary to dysfunctional uterine bleeding, but my haemoglobin is OK. I feel a bit silly worrying about this, but truthfully I really want to know why this has happened all of a sudden. Any help greatly appreciated!