Common side effects of Lialda

Feeling a bit overwhelmed in researched Lialda & what I should expect. Have only been using Lialda for about a week now.id like to know what others have experienced in taking it .. side effects you've experienced ..good results..bad results..& length of time it took for you to experience the drug to work.
I expected gas & hedaches..of which I'm having. The headaches are a bummer in the only med I can tolerate is Tylenol as anything else, for me, is way to upsetting to my stomach & appears to cause me to flare
Any info ..appreciated
Thanks

My son has been on it for almost two months. As far as I can tell, he hasn't had any side effects. At least he hasn't complained of any.

I was on lialda for multiple years and had zero side effects from it.

I have been on it for 4 days, yeah not a lot of time yet, and have noticed hot flashes the past two days but nothing too crazy. Yesterday I had this odd sound issue where everything was really loud, like abnormally loud, not sure what that was about but thought it was interesting.

I was diagnosed on Monday with UC and I'm just starting to come to reality what this means for my life now. I've read a lot of great success stories about Lialda and hoping I can be one too!