I have slight neck problems and get aches occasionally. Every once in a while when I'm high my neck starts hurting worse than it usually would, but it's nothing like what you described. to put into comparison, i got poked and you got shot. I'm thinking it might be because I'm more sensitive to pain while high. I'm pretty sure everyone's more sensitive to pain while high. If that's the case, maybe you've got slight joint pain and when you got way too high that time it could've made you permanently way more sensitive to pain while high. I've never heard anyone say something like that, but I'm thinking it might be the case because one time i got way way way way way too high and was literally experiencing out of body hallucinations in which i had zero comprehension the real world existed, or even the thought that there's any other reality than the one I was in at the time and ever since then whenever i smoke i get strong open eye visuals, usually the same ones i got when i got way too high that time( the visuals i got before and after i went out of body). I'm thinking maybe way too much weed at once can permanently change your highs, weather it makes it better or worse. Again, i have no evidence backing this idea up other than personal experience, so if you think that might be it look into it more. I think you should just stop smoking until you find a way to stop the joint pain, if there is a way.