I've had mine out today (well technically yesterday but I'm rough round the edges and not sleeping well).
I had put the suggestion forward that my frequent and severe stomach pains were gallstones. My GP was I think slightly dubious as my pain was centre rather than to the right but sent me for an ultrasound and bloods anyway. The bloods were ok (though at times along mgg journey were raised when I was having an episode) but the scan did indicate gallstones and I was referred on.
The first hospital appt I had was a phone appt due to covid restrictions. That didn't go well, for some reason he didn't have access to my tests (they weren't done at the hospital but a private place the CCG had contracts with. I had thevscan report on an email from the GP but he wouldn't accept it and again didn't think it was gallstones as the pain was more central than to the right, despite information on for example NHS website saying pain is usually right but can be central. Anyway on receiving the scan he did put me on the list.
Due to covid, no-one had actually seen or examined me bat the scan and initial bloods. So while in the thrall of an attack I went to A&E where the op was scheduled to show how much pain I was in-at this point my LFTs were slightly raised (social drinker only) and there was indication of mild infection so given antibs.
I also had a scan at the hospital which showed my gallbladder fit to bursting and my name was prioritised for surgery as by then routine one were back post covid, but I still had to wait a few months, but really I appreciated that they were prioritising me given the strain the NHS was under.
Finally had the surgery.....and was told by the surgeon my gall bladder had over 200 stones in though needs to go to lab for full analysis.
My advice.....be assertive, keep a diary of attacks, and be well informed as you can. If a HCP can see you in an attack, I think it does help. I'm a mental health nurse myself, so know HCPs are sympathetic when they see someone is genuinely suffering, but as the NHS is so strained they really have to justify everything.