What are some of the first things (signs/symptoms) you notice that mean a flare is coming?

I'm sorry if this was covered before but I'd been doing well until over the past few weeks things started to change and instead of ignoring these signs I reached out to my doctor and found I'm on the verge of a flare.
In the past I may have ignored or been in denial.
My signs (sorry tmi) increased gas and bloated feeling, near accidents due to increased urgency, and what may be mucus.

I'm curious to know what others subtle signs are that hint a flare is coming.

The most obvious sign for me is blood, though I was so used to bleeding every day for months on end without gut pain,. So I'm still not 100% sure what "flaring" means since there's such a wide spectrum of people affected and an even wider spectrum of symptoms.

The first and only flare where my UC went absolutely haywire started with me getting flu like symptoms, diarrhea, extreme gut pain, dehydration, joint fatigue, and basically being bedridden for 3 days straight. I couldnt move at all, the simple act of reaching for a glass of water felt like scaling a cliff. It was the closest to hell i've ever felt. I havent had an episide like that since but it made me realize just how bad it can get for people. I cant imagine having to go through something like that regularly.

You're not on the verge...you are flaring very mildly.
Blood shouldn't be a first symptom we notice, but for some....symptoms are nil until it's visible with blood.

My first symptoms are basically continual discomfort in my stomach, gas, bloating, mucus poos, urgency, ffrequency, with tenesmus during bms, and rectal spasming when not having bms. The gas will be difficult to release.

q

Horrible gas with a ridiculous foul smell that lingers a few weeks before I experience any other symptoms.

I never get the gas or urgency, but for me it's mucus and then blood. Interestingly after having mucus daily for 18 months it has completely stopped. Now all I see is blood every 4 or 5 days (a tiny amount) so I am hoping this is a good sign of what's to come.....PEACE ;-)

The sign of a flare coming is..

Increased gas....mucho!!
Frequency
Mucas
Urgency
Blood in stool
The disintegration of stool