Hi there. I sympathize, as when I got my composite filling my MCS reaction was so bad I had true brain fog. And then when I got the tooth extracted 10 days ago he put "gelfoam" in there, which has caused me to be extremely weepy and weird ever since. From my reading of the MSDS sheet it takes 4-6 weeks to totally absorb. Uggg.
When I don't get enough sleep, or fitful sleep, my cognition is impaired. I had been slowly titrating off temazepam for about 3 years now--the pima milk cystitis and tooth issues were so stressful, and during the winter pipe noise makes sleep difficult, so I haven't really titrated much in about a year. I was planning to get down to very low doses. I am down to about 8 mg from 30 mg. I was hoping to get down to about 4 or less over the summer but now it will have to wait.
Anyway, as helpful as these benzos are for some of the issues involved in these chronic illnesses (such as excess glutamate, and muscle spasms etc), they have a serious downside. They do impair sleep over the longterm. They change how your receptors function. They essentially work by keeping a 'gate' open. Usually when your own gaba locks onto a receptor, it "closes" until the nerve has fired. Benzos stop that feedback system so your receptors get flooded. But the lose the ability to self-regulate. I think the lowest doses you can take are the best as longterm they lead to poorer sleep, and poorer cognition overall. I found that 10-12 mg is my "toxic" level--beyond that I get toxic effects. My sleep gets worse, really. I get tolerance withdrawal, which I was at, at 30 mg. And I'm goopy and less alert.
So I recommend looking at Dr. Ashton's water titration. There is a yahoo group where they have a spreadsheet etc. The tools for water titration are a $10 blender, a 100 ml glass or plastic cylinder with measuring lines, a syringe (which I get on amazon.com) which is about a couple bucks, and some sippy cups or something small. You can titrate down, as I do, by tiniest amounts--1 ml at a time for instance--very accurately but smidges so there is no bad effect. If you notice any reaction, just stay at that dose until you are totally stabilized.
It is autumn here so the days of warm sun are passing, but even a bit chilly it is still useful to sit in the park. I think fresh air and your beach/ocean breezes can help.
You could consider lumbrokinase or nattokinase, although I know you're on a very tight budget so not sure how you could purchase that. These are enzymes that dissolve fibrin, which is often excessive in these illnesses. Then more oxygen can get to your tissues.