I Need Help

I'm new to this message board stuff but i'm going to give it a try. My last normal period was May 15th. My periods usually last 3 days and have medium bleeding with terrible cramps. I should have gotten my next visit from AF June 9th. But instead I was on June 11th I started having Brownish red discharge with no cramps . It lasted for 3 days and then 2 more days of spotting none of which was even heavy enough for a pantyliner. Along with that I have been feeling bloated (I only have 3 pair of jeans out of like 8 that fit me now ), having mood swings, crying spells, my face has broke out, extreme fatigue, But I can't seem to sleep enough, I find myself waking up to use the restroom which isn't like me. I Have had spells of gas( which isn't like me at all.) And everytime I eat I get burps, loud enough that even if I cover mouth you can hear them. And eating werid foods ( peanut butter and strawberries) . And craving milk which I usually stay away from ... Now I have taking 2 HPT and they were Negative. And I Had a Blood Test I was sure it was gonna be postive, But it was negative. If I'm not pregnant, WHAT IS WRONG WITH ME I know something is not right..... I just can't tell what it is! I need advice!