I just wanted to let you know that you are not alone. It can be hard to figure out exactly when the right time is to tell someone about GH. You don' t want to blurt it out early in the relationship, but then you don't want them to feel like you have been keeping something from them either. There is a lot of anxiety about how it should be said, as to not send them running off in fear. If things between you and the other person have been intimate, like kissing, foreplay, etc. I would tell them soon.
Have you ran things through your mind about how you want to say it?
I had to do this when I told my BF. Like, for me it was:
" I've had GH for 19 years. Thankfully, I've never given it to anyone, but you need to know that I have it."
Usually, the other person senses that you were nervous about something, and is relieved that it's all out in the open. At least that's from my own experience. The relief leads to an open dialog about GH, most people don't know that much about it, so it's up to you to educate them.
I have made the mistake of not telling someone until after I became inimate with them. I felt so guilty about it! I will never do that again. Luckily, they forgave me, but most people wouldn't.
Good Luck.