You need to resume activities very slowly. At first sign of symptoms you need to back off and then learn to back off before the symptoms hit.

I'm 11+ months with PCS and yesterday had the most horrible headache that I've had in over a month. The previous week was very good compared to my "now" normal. No rhyme or reason for it. It just is what it is.

2 weeks? Sorry to sound down but for many it's 3-4 weeks before the worst hits. Please take it easy.