<human>: So basically, I'm a Sophomore in college who's normal in most ways, i'm in a frat, i'm pretty social, I've had a pretty good sexual life. So I met this girl a few months ago, and we've been talking pretty frequently, went on a few dates, but spaced out because we lived pretty far from each other at home and had bad schedules when we were at university. We get along great, we like the same things, and I'm pretty sure we both adore each other. 

The problem really revolves around my medical problems. I have incredibly low testosterone, but am struggling as to whether I should be on it because it's can potentially make you infertile and I want kids. Also for some reason I don't ever ejaculate? But that's besides the point. This has made me go into occasional periods where I'm basically completely unable to get aroused. I also have a psychological bend about being insecure about my inability to get aroused. I'm perfectly willing to get her off and expect nothing in return just for her sake, but I'm confused with how to broach this. I don't know how she'll react, and if that's something she necessarily wants in a long term partner? I'm really just not sure how to explain the situation to her.

Can you give me a shortened version of the text?
<bot>: How do I explain my sexual/medical problems that prevent me to have sex to this girl without scaring her away?