I posted this before looking for topics, but it kinda ended up being online support for general bicycle troubles.
Which is a good thing! Ask your questions about bicycles that are currently on your mind and we all try to help.
Pre-Emptively calling in @dallasw and @Kissmydadonthelips for their knowledge.
Not a medical expert, so take it with a grain of salt. But from what I learned, there's basically two options here, make your stance less aggressive or train your posterior chain muscles (basically everything in the back) more via (body-)weight exercises.
You should definitely look up more in-depth resources on this though and not trust me blindly on this, don't fuck up your neck because I said a thing.