Lumbar instability? and spinal stenosis

It's my first time posting on here and I'm at my wits end health and pain wise. I'll post some longer history for context below so you can skip if it's too long :)

Last year an accident made my back symptoms worse and MRI shows lumbar stenosis and a previously known bulging disc at L4/5 worse than before but the Drs insist that it's not causing my symptoms because it's only "kissing" the nerve. They say my symptoms are FND which I was diagnosed with but I don't agree with.

Im trying to tell them that my symptoms are 70% better when lying down and that's the position I'm in for MRI. But they say that position can't affect the discs impact on the nerve. Could anyone help me with this? Because I've found research saying otherwise.

Also I asked about instability and they said signs of it would show on an MRI when lying. I feel like too much trust is put on "nothing" being on scans.

I was told I didn't have endometriosis for years because my MRIs were "normal" but I had riddled with it.

Sorry for such a long post.

Thank you to anyone who takes the time to reply.

I've been trying to get a Dr to listen that there's something wrong for years and in the meantime my body is falling apart 😞

**Background for context**

I was diagnosed with g-HSD in 2018 but that was later suggested to be hEDS (although I feel I fit more with classical or classical-like, no one has ever fully assessed me against the criteria).

I've had back problems since I was really young, I was told it was growing pains and given Physio.

Since then I've had increased lumbar issues including a bulging disc at L4/5 since2018 atleast, neuro symptoms from my thighs down and was diagnosed with FND in 2021 but I didn't feel it fit.

Also for context 29 yo woman in the UK