Too many symptoms?

I feel like I’m having too many pregnancy symptoms for only being 4 weeks and 5 days.

Since 5dpo, I’ve had morning sickness, usually just in the morning and evening and i get a break in the afternoon, mostly just nauseous but occasionally vomiting

Increased headaches since 5dpo

Let me add, these earliest symptoms came on the back of a trigger shot, so when trigger symptoms ended and pregnancy symptoms began is a fuzzy line.

I’m having dramatic appetite changes the past few days. If it’s not a carb it makes me feel queasy, despite the fact that I’ve been low carb for most of my adult life.

The past two days, my nipples got HUGE and my breast tissue is sore.

I’ve been a little forgetful, having a hard time thinking of words for things, and can’t spell to save my life.

And finally, this morning i woke up with insane lower back pain.

I feel like all this has to be because I’m dramatic or all in my head. I’m literally barely pregnant. How am i even having this many symptoms??