Constantly tired.

For the past week or so I’ve been CONSTANTLY tired. I actually slept 10 hours last night and I’m still currently extremely tired. I’ve been hungry a lot more than usual, but at the same time I can barely eat at all. My breasts feel a bit swollen, larger than usual around this time. Cramping/pelvic pains galore (mild pains). I’m 4 days away from AF and idk if this is it for me or if AF is on her way. I’ve never been like this before. I usually have a lot of trouble falling asleep but sleeping this much is so unusual for me. Any advice, or anything? I’m so stumped.