Symptoms...

So I really try not to look at symptoms because they vary so much... but I can’t help but feel “different” 2days ago I had pretty bad cramping (3days Post ovulation) and I have been extremely tired/ moody. I also went out to eat and my dad offered to buy me a drink, when I went to drink it I couldn’t even finish it. It made me feel nauseous just siping it. I normally stay up for about 16 hours a day.. the past two days I am tired after only being awake for about 8 hours. Like I said I try not to look into this but I just feel “different” has anyone had anything similar and gotten a BFP? Or am I going nuts?