Hi Olu
Hope you dont mind a female reply on this sensitive subject, but my partner has the same probs as you, mainly controlled bs but having problems in the bedroom department.
He tried different medications before settling on Levitra, which i can only describe as a wonder drug for obvious reasons!!!!
I would also advise you to see your gp as a lot of his symptoms were put down to his diabetes ie, loss of sexual function, goin to loo a lot but actually through perstering from me and not havin a good nights sleep for ages with him waking me up to use the loo he went to gp to find he had enlarged prostate and a simple tablet at bed time now assures me a good nights sleep. Hes only 47 and would not normally be tested for this at this age.
Hope this helps, and hey good luck with the experimenting!!!!
Juliexx