Hi qspadone,
Cutting back to zero, if you are still getting uncomfortable symptoms even with a few minutes of breathing meditation, is a wise thing to do. Your symptoms indicate that a lot of purification is going on in the background and this could continue for some time without you needing to engage in any practices.
“Being stable for the last few weeks” means that you have arrived at a place of stability where you have not experienced any uncomfortable symptoms over the last few weeks. That would include disturbing powerful emotions, feeling irritable, pain in the body, and so on.
How long it takes to become stable will depend a lot on the effectiveness of the grounding practices you use. People can become stable fairly quickly if their grounding practices are effective. This means within a few weeks, or months of a period of excessive overdoing.
When you do feel that you are stable again, then you could start testing, to see if you are ready to resume practices. This could mean engaging in just a few minutes of breathing meditation and then seeing how this affects your system. If you are still experiencing uncomfortable symptoms from that, then cutting back to zero again for some time (weeks or months) would be safest.