Lots of advice above, but noting is applies imo untl you consult a healthcare professional or two.
I would also offer a couple of questions/observations to consider.
1) it appears that engorgement is not at issue, in which case the "essential plumbing" appears to be working. Which is a good sign imo.
2) is the endorphine release happening? That is the inside feeling of "glow" and "after glow" feelings? If yes, then the "chemicals and chemistry" are working. If not then perhaps some very tender loving care might be applied to help diagnose.
Dry orgasms can be caused by a variety of conditions best diagnosed and if needed treated by your health care professionals.
Best of luck moving forward!