Welcome to Healthcare Magic,
Your story is very sad and remember before start any sexual relationship ( protected /unprotected) is not enough just “verbal prove”. You both must be checked ( blood works, full STDs panel) , plus ask your partner about older medical exams results to see all history. Also note that many girls who have had in the past any problem ( genital/sexual, etc..) they will hide from you due to many reasons( afraid broke up relationship, ashamed, etc…) that why you just ask your future girlfriend (in future) for older reports and ask her to make right now full check up, if she is healthy with no history then she will be agree, if she will refuse then definitely she hiding something and you must be concerned and avoid such relationship. Afraid about needles/blood is just an excuse. As you don’t trust your current partner , then to calm down your doubts you need full STDs panel and Dermatologist
I wish you good luck and speedy recovery,
Hope this helps and I have answered your query. If you have additional queries don’t hesitate to ask.