Help.

my period was supposed to start last Thursday October 12. last period was September 20-24. I've been having tender breast, headaches, constipation, dizziness, fatigue, strange cramps, irritability, sore throat, stuffy nose, sensitive to smells, some nausea, moodyyy, back aches, leg cramps, ankles/feet are sore, and dehydrated(I've been chugging water lol). idk maybe I'm just over thinking. haha... but then again I've never had my cycle go this long before.. what do you think...