Super tired.

So I'm super tired. have been for the past 4 days. I can't tell when I ovulated as my bbt looks all wonky compared to my past test. I've asked multiple times what others think and everyone just says they can't tell cuz there a missed temp (I was up all night), a discarded temp (taken super late and after been awake for awhile), and some open circles cuz I took them an hr late or so. I can't seem to keep my eyes open. my back is killing me so is my knee which is already bad. I started vitex 4 days ago also. I read that it doesn't matter when you start taking it. So I don't know if my exhaustion is from that or not. I had migraines the first 2 days, nausea the first day, and an upset stomach the first 2 days. So I don't know if these are all from the vitex or are actual symptoms.

bbt chart below