HI BB,
I saw your post and was going to suggest an mri for your back etc...... i had some neck problems (stiffness and pain and so on) which really bothered me after treatment and it would come and go.... I asked about whether or not it was due to An... in any case, i didn't know if it was due to whiplash which i also had prior to my An diagnosis or what was going on, so I asked for an mri of my spine from one of my docs ..... well it came back with all sorts of things on it... it was done from my neck down to the end of the thoracic area.... during the next year, when i got new stuff going on in my back lower down I went and asked about that and had another mri which viewed the entire spine top to bottom and sure enough more stuff showed up in the lumbar region.... I won't list them all (but they include herniations, disc probs, (ordinary stuff) along with spinal cord compression in various places, and a number of other things some of which are almost unpronounceable and, like an An, kind of rare ......) so if i were you, I would say that since you know your body and how you feel and what is different from before, that you ask your doc for further investigation and get some answers.... stiffness in the morning could be all sorts of things, really...... some a normal part of getting beyond 35 yr (ahem) such as a touch of arthritis, and other not serious things, or something else for that matter, who knows .... in any case it would be a good idea to find out since if you have posted a question about this, i am thinking it bothers you enough to have even bothered to ask here.... so I'm glad that you did..... please do follow up and please do get some sort of answer....
It's true that we notice things happening in our bodies after An in a way that we might not have before.... call it being hypervigilant if any one wishes.....and quite often they turn out to be not a big deal.....then again, many of us know when something is not right and, at the least, need an answer of some sort.... if a diganostic test can help in finding that answer, then go for it....
wishing you all the best,
windsong
Please do follow up on this and ask your gp (or any doc you see post An ) for a further evaluation....it could be nothing it might be something, but at least you'd know.....
stay well,
windsong