Going mad!

Been showing super symptoms. Was crazy nauseous this morning, followed by intermittent and no reason crying. Also tired, achy, hot and can smell things like crazy. Feel tight in my lower stomach and had pulling like tightness oddly. Taken loads of tests in the last few days. Nothing. AF due in like 2 days at the latest. How am I not getting a positive? Been waiting 9 months. This is the second time this has happened. The symptoms are worse this time though.