hi I was on 9 antibiotics for a recurring infection. one of them (generic form of Bactrim) I had a bad reaction to it. my head got real hot. th following week I had severe anxiety or fight and flight. doc prescribed a benzo. I am now 23 months off the poison. but still having this anxiety. it happened in the daytime only and stops at night. I need help.

From the studies I have read it certainly seems possible damage to the microbiome could cause both the death of the good bacteria and the subsequent increase in both bad bacteria and candida yeasts which can cause inflammation, and then colonise those inflamed parts of the gut even more, which can cause anxiety. Have you tried any probiotics at all? I would be cautious of most over the counter/online probiotics due to my concerns that they do not guarantee their distribution chain or storage conditions

Probiotics bought online – dishonesty by manufacturers regarding distribution

The paid for probiotics that seem to have most evidence to suggest they do what they claim are VSL #3, it’s European version Vivomixx, available in either pill or sachet form and Symprove probiotic drink. You can order VSL in a cooled delivery box from the manufacturer (there was a 10-15% off offer, may still work)
https://www.vsl3.co.uk/

you can get VSL and Vivomixx from Lifestyle Labs in a slightly cheaper chilled delivery
https://www.lifestyle-labs.com/products/Vivomixx-Probiotic-450-Billion-30-Sachets

I would only order Symprove from the manufacturer
https://www.symprove.com/

You could also try making Kefir (fermented milk) and Saeurkraut (fermented cabbage +veg), or Kimchi (fermented cabbage, veg & fish), but they can be quite tricky to get right, especially in this heat where you may need to control the fermenting temperature with icepacks/coolbox setup.

I should also add you should try and eat and drink more healthily, so cutting out junk food & processed foods, cutting down on things high in sugar, chocolate, caffeine, alcohol. Make sure you also include some prebiotics in your diet – you can see from the study below which foods contain the most and which the least – basically garlic (particularly dried), chicory root, and Jerusalem artichoke have very high levels, then leeks, onions, wheat bran and asparagus lower, chickpeas, oats, lentils and beans also. If you already eat those foods in decent amounts you probably don’t need to change anything. Eating a lot (10g+) of prebiotics can cause bloating & gas.

https://academic.oup.com/jn/article/129/7/1407S/4722578