Hi @FittobeTrish ! Welcome to quit train. Hope you spend some time to poke around and get some info. & tips that might help you along.
Congrats on your 3 month quit! That's a GREAT start to your life long quit!!
Most of us gained weight after quitting. I thonk in some cases it has to do with keeping your mouth busy perhaps and I'm convinced our metabolisim changes a little as well once we quit. As @Doreensfree mentioned, your primary focus right now is continuing to solidify your early quit. While you're doing that, try and incorporate exercise into your daily routine as well. Even going for a good long walk daily will help burn off some calories. In terms of snacking, look for something healthy to satify the munchies. Have a look around for sugar free mints or candies of some sort you can suck on to keep your mouth busy. Also be aware of mealtime portion sizes. Try to keep those as small as possible without starving yourself.
There's also lots of other posts in this section of the forum that may give you some ideas ... read away!!