Worried I may have genital herpes (male)

Hello, So in the past two months I have had unprotected sex with 3 females. Stupid I know - I won't ever be doing it again after this scare. Anyway today I noticed a slight tingle in the top of my penis that - as soon as someone mentioned herpes and I googled it - began to increase in the tingling. It has come and gone since then. I don't have any other symptoms but believe this is only the beginning. I have a few spots all over my penis but I have had these for years and they don't resemble those of herpes at all. Has anyone else experienced similar or can share some advice? I am a bit of a hypochondriac. In the past I had pain in my lower left abdomen - someone suggested it could be an appendicitis - to which I googled it, and the pain immediately worsened. I went to A&E in extreme pain - they clarified it was not appendicitis - and the pain went for me. Many thanks