Can some one tell me what this could be?

So I was told to take BC for my acne but I end up stopping mid pack because of the symptoms. I started on my first day of my cycle which was on the 21 of last month and stopped that following Thursday. Well i didnt pay attention to the days because the day I stopped was the beginning day of my ovulation period. Well I ovulated the 5th of this month and spotted on the 7th.... I spotted for 2 days and from the 7th to now I've been extremely tired, dull low back pains, some cramping, bloating and nauseated, and can barely eat anything without feeling sick. And for an hour now my nipples have been tingling. AF is 5 days away... Any advice???