Hi Julie,
Sorry I didn't see this sooner. I hope your day is going better than it was. Yes, stress is a huge trigger. There are many things that can help with that. I find deep breating, fresh water, or even just getting up and walking around helps.
Also (and this goes for anyone reading here), we've started a group called June Buddies for the purpose of providing a source of support for people quitting in June. Please drop by and request an invitation to join if you're intesterested.
Cheers,
Rob