Sounds very painful poking that thing in your dick. Anyway, hope things are ok with you and your gf. One thing about non-AIDS STDs is that, they are mostly easily curable. Only herpes is incurable but it's not dangerous. The scary part is if the symptoms have developed into complicated stages, the physical damages are irreversible, those pics from the link are complicated stages.

The psychological effects from contracting STDs are damaging. That said, people can get over it quite easily too like my friend who is happily fucking around now after being shell-shocked at the discovery of having contracted herpes. Of course now, he wears condom all the time.