and even so...
but any help in the form of solutions ...at this point ...coming from others.... will be guessing on their part, without you offering blow by blow documentation of what you did.

The only thing that sticks out ...that with certainty I can point to...that you said ...is you have been doing term stuff while keeping devel and development enabled...
which is not a good idea at all...
it is known to be a big contributor to problems like what you are currently facing.

Past that ...
I would be irresponsible and cavalier with YOUR device ...
If I offered advice on how to solve a problem ....running on "guessing" what your problem is ...with zero documentation to go on.