I'm not a doctor, but I think your recovery will take some time, probably at least a couple months. My reason for saying this is because you had two concussions in such a short period of time.

I have had multiple concussions, but I didn't realize it until I mentioned to my new doctor that I broke my nose a couple summers ago. I broke my nose by slamming face-first into a hard concrete floor.

Anyway, to get to the point, I'm now 4 months into another concussion - 2 years later - and am recovering veryyyyyyyyy slowlyyyyyyy. My doctor said that getting multiple concussions makes it harder to recover each time, even if your concussions were spread out over a long period of time.

Hope you find some relief soon! I can't even imagine working in a mall right now (I have worked retail gigs in the past), so I give you props for even making it through half a day.