@bjl218 Sorry to hear about the difficulties. I am not sure about the accuracy of the testing as I am unfamiliar with it. The best guess is that you are reacting to the mB12. Those type of psych symptoms have been experienced by a subset of people on this site.
There is a theory that low B2 triggers the partial derailment of the methylation pathway. This is the best place to start. Take enough to turn urine Vit B yellow. I had a lot of difficulty with this as I did not seem to be absorbing it well at all.
Then start the mB12....tiny amounts and make sure that you are taking a lot of magnesium, which you should be if you have heavy metals on board. Look up any posts with COMT. This is a genetic SNP that you may have with your reaction. Some of these people find initially taking hydoxocobalamin is easier.
There is nothing subtle about mB12 it is a bit of a ramrod. Tiny amounts in your case until you figure this out.
After established on mB12 then you can add the folate and other componenets of Freddds Protocol, if that is the way you are headed. I can take the combo B products similar to what you are taking now.
I no longer meet the criteria for CFS. But for the first 5 years, I had to take all the Bs separately. For example, for the first couple of years I took B2 at 300mg and mfolate at 4 mg a day. There just aren't products that can accommodate our needs.
All the best.