April,
I am thrilled for you that you were able to find such a great group and how I wish they offered a support system like that where I live.
Just go to lunch and be yourself, you are a wonderful person and kick the anxiety to the curb. You don't need it with you at lunch. You will be safe.
Do get plenty of breaks during the hot weather and try not to do so much moving activity in one day.
Gentle Hugs
Kitt