Can A Blister On Labia Majora Be Suggestive Of Genital Herpes?

I have genital herpes and I am super safe sexually and a few weeks ago I thought I was having an outbreak. There was a bump but it never went away. It's on the Labia minor, near the urethera. It's flat and slightly raised. Like a blister, hardly noticable, and the same color as the skin in the labia minor. I have no other symptoms at all and I always have the talk before I get involved intimitately with a boyfriend and always use condoms. I'm still afraid... It looks nothing like a wart but that's what I'm afraid it is. I used to use the shower head for self pleasure so it could be scar tissue and when I fell on my bike and hit my lady part, I think it inflamed it. But now I'm too afraid to go to the doctor for fear they'll tell me I have another STD and that's a huge source of anxiety for me. Should I be worried or could it just be scar tissue from the bike and the shower or from a healed herpe?