How common are sore breast? Early symptoms?

Hi there, I’m currently 9 dpo, waiting to test until 13 dpo (if I can hold out)... I feel like I’ve got some things going on that aren’t the norm for me. INSOMNIA!! But not sure if it’s because I’m overthinking a possible bfp.. also watery CM 6-7 dpo and I normally never have any CM outside of ovulation. The other odd things is just feeling almost a “tighness” in my lower abdomen.. hard to describe. It’s not really painful.. just feels like I got a good an workout in when I haven’t lol. Other than that I have a dull type headache that will not quit.. I have zero tenderness or soreness of my breasts. I feel like every post I read the breast tenderness is a sure sign so I’m just making myself crazy bc I don’t have that at all. Any thoughts? I’ve been battling infertility and this is the first time I’ve felt off.. I feel like I’m making myself crazy. I also started a strict keto type diet so I feel like maybe symptoms could be symptoms from that.