herpes can appear many different ways visually, sometimes being raised and sometimes not. I have never experienced any burning sensation while urinating or in my urethra but when checking herpes websites it appears that this can happen.
I think you should go to another doctor and tell them exactly what went down. Before you mentioned the bumps it almost sounded to me like a kidney infection or something which can also happen from sex but it purely bacterial.
In general though, with herpes bumps, they are blisters. they can break, pop, etc and they scab up at the end of the cycle and leave tiny red/purple dots.
check out some of the website pics for more info. You can type in 'herpes' at google and then choose google images.
You should get checked out ASAP. If it is not herpes, you probably need to be on meds to clear up whatever is going on.