I have been using the Gynera oral contraceptive pills for more than 2,5 years now. Just this past weekend I started again with a new pack but someone I have some rather heavy bleeding and some abnormal blood clotting. What could be the cause of the heavy bleeding and clotting?

Age: 31
Female
Medications: Gynera, Vexal, Depakine
General Information: I have gone open water diving last weekend and ever since the weekend it has been like this. I had some spotting only last week Thursday and Friday. Saturday it was a little more and then after the diving it has just been an abnormal flow