If you don't mind giving me a little insight, did the effects creep on you gradually, come in waves or just hit you hard and you stuck it out?
For this entire time, were you still able to get an erection and feel somewhat horny if you were stimulated?
Looking back I should have quit the drug immediately upon those first side effects but like I said, Merck claims all side effects will resolve after you discontinue and at that point I believed them... especially as they do not disclose the full mechanisms of action or effects of their drug, and I and others had yet to compile enough research to find the truth.
although they didn't nail it into your head I got the pretty clear message that- if you continue to take the drug while experiencing side effects then your proceeding at your own risk whether or not the symptoms will clear up.