Originally Posted by pauly7582

Hi mate.

I notice the following from your posts. Your Test levels are normal. Your train a lot. You have very low body fat, little appetite and have done for a long time. When you trained for the London Marathon your body fat went very low, very quick, very easily.

From these symptoms I would speculate that you may have hyperthyroidism. The reason is not known, but men with thyroid disease commonly suffer from erectile dysfunction.

Ask your doctor to check thyroid function. Before you know the cause- DONT take anything (proviron or other drugs) to try and treat it as this could compound or mask the source of the problem.