I'm afraid with stroke recovery anything goes. What may be real for you might not be the reality for other survivors.
Can I ask when your stroke was?
My guess is that a TIA recovery period has some common characteristics akin to a major stroke recovery process. Two months ago, I suffered a TIA out of the blue. Three days in the hospital with all the necessary tests (MRI, CT-scan, catorids, etc.) showed no pre-existing conditions. But the aftermath of the TIA has been an up and down experience,
largely dependent on whether I've had a good night of sleep. My internist prescribed xanax that has helped greatly with the sleep. But I can identify with your having the alternation of good and bad days. Hopefully, it's the brain going through a regulating process seeking a sense of balance??