I have done all that I can to help you . You should see your doctor for your own piece of mind . Re- posting here will not give you that.
No fluids alone , yet again will not give you and Sti . Blisters from Sti become lesions then scabs they don't stay the same for long. Your probably seeing Forcydes spots
I have answered your question twice already, the answer is you cannot get an STI from fluids alone. I suggest you see your doctor right away .. Your anxiety has consumed you.
Randall