Weird Symptoms all at once

Okay so I would really appreciate if someone could help me figure out what the heck is going on with my body.

So it all started in June... I got really sore breasts (not nipples) for an entire week. I have never had this happen before. My husband actually said they looked larger without me mentioning this. I started to feel like I was probably pregnant. I would wake up in the middle of the night nauseous and sweating but no throwing up. Then my period arrived, 2 days early. My period is ALWAYS right on time. I track it with an iphone app. My period was super heavy for one day and then barely anything on and off for the next 3 days. Period started June 20th and ended the 23rd. After that no more nausea. Then, July 4th the morning I am supposedly ovulating I have horrible cramping on my lower left side that continues on my lower back. I take 2 Advil and 2 hours later I am fine. it starts again later on in the evening but is very very dull compared to the morning. Last night, the 7th, the same thing- dull cramps on left side of lower abdomen. i might also mention I have been having weird cramping in my left leg as well...not really too painful....sort of a growing pain but i am 24 so too old for that. I have no idea if these are related but its on the same side so it's worth mentioning.

Thanks so much!
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