Hi. I think the first thing you should do is learn. Learn about ocd in general here: http://freepdfxdownload.blogspot.co.uk/2012/07/free-pdf-overcoming-obsessive-thoughts.html
Ocd is all about certainty and the need to be 100% sure all the time. But the fact of the matter is, you can never be completely certain. your mind will always try to find loopholes. you have to let go of the need to be sure.
when you say your anxiety is gone, don't worry about that. something that hocd sufferers think is that they need to be 'disgusted' or 'repulsed' by same sex thoughts, but you don't need to feel that way to be straight. you are looking for quite extreme reactions to extreme thoughts and when you don't get them, it makes you worried and feel worse. try to stop checking as well. the more you check the more you'll get yourself worked up and the circle will just continue. in terms of 'groin responses', anxiety is a feeling of the nervous system and the responses are not that dissimilar to the response you might get if you were turned on so don't immediately think that the response you're feeling is being turned on because it is just the anxiety.
Ocd is a serious mental disorder. Ocd won't go away on its own until you take treatment.Treatment of ocd consists of medicine and cognitive behavior therapy.Combination of both is the best treatment, I would recommend you to start your treatment asap.
You can see by yourself that ocd has make your terrible, if you want to become normal again, you will have to consult a psychiatrist and therapist.There is nothing to be scared, you are not the only one with ocd, it affects about 2-3% of population, i myself have taken treatment of ocd and now i am free from ocd, it will get better ,so take medical help.
I'm so frustrated and depressed guys please help this is destroying my life,I am doubting the one the thing that I knew I was.its cause confusion,Pain,frustration and depression sometimes when I take a shower I cry in shower.I feel like taking knife slitting my wrists and dying slowly.why won't these unwanted thoughts,images,impulses and urges just go away