…I must stand on my hands to get an erection ?
Perhaps your erection is insisting that some other method be applied to it for a change
You need Ovaltine!
To insert a serious answer (with disclaimer before and after):
I am not a doctor; and thus my answer may not be accurate. If this is important to you, don’t ask about it on the Dope; there is a longstanding policy that medical issues need to be taken to a doctor, not asked of one online.
With that said, I think what’s going on here may be a case of pain/discomfort causing arousal. However, I don’t know anything else about your problem, and even if I did, I’m not qualified to make any sort of judgement. If you’re really worried about this, suck up your pride and modesty and see a doctor in person.
I HAVE MY PRIDE
If you’re looking for a medical answer, go see a qualified doctor; if you’re not serious, then the thread is stupid all by itself. 'Tis closed.