Is this really just IBS? (TMI mentions)

I know I've posted similar before, yet these worries still seem to persist...

I recently started back therapy in which to no surprise she found my currently emotionally abusive/high stress situation has led to severe depression/anxiety, along with a multitude of symptoms.

Though as of last night after my therapy appointment (and a bit more stress to boot) I've been having the WORST stomachaches. Sharp/dull mixed, and sometimes they're noisy too. Kind of like a gurgly noise I guess? I know in the past I was diagnosed with acid reflux (I was about 6 or 7 at the time, and I'm 16 now) but these stomachaches seem particularly bad.

I went from being severely constipated with gas/chest/lower back pains alike to as of a few hours ago running to the bathroom at least two or three times with a mix of regular and extremely soft almost liquid stool. The day before I also had a ball of what I think was white mucus in the mix but that was the only time that appeared discounting the month prior where there was an excessive amount of regular mucus and orange-hued mucus alike.

As far as I'm aware cancers like bowel/colon don't run in my family, but since my grandmother has recently gotten diagnosed with colon cancer my brain has been OBSESSED with assuming that's what it is. Paired with the nausea, chills, insomnia, and other various pains, I'm almost convinced my days are numbered. I'm also a little worried it might be something as mild as food poisoning too, but I can't remember how long ago I ate and I don't have any food allergies as far as I know. (If anything my appetite fluctates on a regular basis)

I feel like I should also mention that early last month I had a CBC and the only thing that showed was hypothyroidism and low vitamin d, but i'm unsure at the moment if those are fixing themselves or if my vitamins/given medication for this are helping. I haven't really taken either in a while though...everything else in that regard showed up fine/normal.

Has anyone else experienced symptoms similar to these? How did you handle them? Any advice would be appreciated.

Stress has a big effect on our digestive system so that's probably what's upsetting you. If you have thyroid issues you really must take your medication. There have been people on here whose ibs symptoms have greatly improved with thyroid medication.not only that but low thyroid has a host of other symptoms too and affects many processes in your body.

I have nausea, actual sickness chills, sweats and stomach cramps and for me it was IBS. I have increased my fruit and veg intake and exercise and I am better but not fixed though for 2 - 3 years I would be sick at least once or twice a week, to the point I was damaging my teeth. I also had regular attack the least being weekly the most being 2 or 3 times a week. I cut out coffee, cheese and a few other things.

I can say it does get better

If you are hypo thyroid, you must take your medication. The hormones that the thyroid produces are crucial for your whole body to function.