Tingling/Itching in Breasts

I’m having itching and tingling in my breasts..is this normal?? It’s like I go to itch them but realise the feeling is coming from within them rather that normal itching which is from the skin..

I’ve also been really nauseous for a whole week like the only time I’ve not been nauseous is when I’m asleep. Thrown up 4 times in 3 days & slight cramps. I’ve taken a pregnancy test 3 days & 2 days before my period and negative. My body just isn’t right and I don’t know what’s going on. I don’t know if I am pregnant as I’ve not noticed any implantation bleeding, not really been urinating frequently unless I’ve had a lot to drink, I had a funny taste in my mouth after eating tuna for about 2 hours but not had it again and I’ve not had any cravings if anything I’m really picky about what I’m eating..

Can someone help? Has anyone else been through this?