Thoughts?

I'm 9 dpo and af comes in 6 days. Through out the days I have experienced symptoms I never get. Started a couple days ago but these are the only days I recorded

12/10 headache @ night I had some what cramps/ small tummy ache

12/11 headache pain and back pain also

12/12 nipples were a bit sensitive

12/13 I woke up with my nipples being itchy!!!! My boobs feel heavy AND my nipple is soreeeeee/sensitive. My back is killing me :(

(I have my nipples pierced and they been healed and I've never gotten this type of ache/soreness)