I was wondering if under my circumstances I should be worried about a hair follicle test.

I am 260lb man with dark brown hair.

I barely ever smoke but I took about 4 hits within an hour of each other in one night about 40+ days ago. Before that I smoked a whole weekend long but that was about 3 months before this last time I smoked. So the heavy use weekend was 4+ months ago.

I got let go from my job Monday and I have a potential interview next week and one of the requirements is that I can pass a hair follicle test. Do you think I am under the detectible limit or should I start the Vinegar, soap etc. treatment that everyone has spoken about?

Thanks,