I recently had horrible whiplash (on Wed) and since then when I cum, I feel it in the dick but no euphoria. My head feels empty. Could I have gotten permanent dopamine/spine damage, or could this just be temporary?

Willing to bet temporary, any other pain/effects?

Wait it out and see?

christ...that sucks.

Only other side effect is neck pain/stiffness

Don't worrie, I had a similar thing with a slightly pulled shoulder (I would say pulled but it was minor tbh).
The pain and stiffness of it distracts you from your orgasm and being in pain nulls the euphoria. It'll come back when your neck's better again.
No need to worrie, just get those microwavable heat-pads and use them on your neck as much as you can - I don't know about wiplash but it helps with anything I ever pull.

Thanks, I'll just wait it out then. I also got some Icy Hot cream, and that seems to help a lot.

Ok, the pain in the neck is gone, but the orgasm is still weak. Like instead of that euphoric head rush (from dopamine), it feels empty. This is really strange.

I've had that for a while. Just now starting to think if something triggered it.

masturbating is just boring for me now, its sort of like a chore.

Maybe I'll just stop for a few weeks, then try. I mean shit, just last week it was so good and intense Id laugh when I was done, now I feel like crap. I can almost feel something wrong with my head.