Medical question

Warning, gross TMI.

So the last month, I’ve been waking up (idk if it’s in the middle of the night or morning cause I’m half asleep and I have blackout curtains) with this extreme nausea, but it eventually goes away. I’ve been having a hard time sleeping, my back occasionally hurts (mid section behind the back ribs). Every day, at 11 o’clock, not an hour sooner or later, I get a headache. Everyday, same time. Ever since having 3 kids, I’ve always woken up in the night having to pee but not to an extreme “I gotta go”, like I was able to fall back asleep. But lately, I’ve had to get up in the middle of the night to pee or I won’t be able to go back to sleep. I’ve been having abdominal cramps, with (get ready for tmi) diarrhea? I put a question mark cause it’s not solid, but not liquidy either. It’s more…mucusy I guess?

My husband says he thinks my boobs look fuller. He’s also said I’ve been more sensitive emotionally lately.

Now I know what your going to suggest. pregnancy. But I’m 98% positive I’m not, I’ve been on the IUD for a year now, took a pregnancy test..2 or 3 weeks ago just to rule it out, negative.

I should add that my step son slept over this past weekend and woke up vomiting and pooping. But it’s hard for me to connect my nausea and bowel issues to that because -) my nausea has been for a month now and 2) he’s had night time vomiting and pooping problems his whole life so this wasn’t exactly new for him.

My husband saying I’ve been more emotional: him and I have been arguing because I feel like he’s been gaslighting and just being an ass hole, and he just thinks I’m being sensitive.

Google says it’s a brain tumor, chronic headaches or pregnancy. So…what’s your analysis?