Hi D.,
I know exactly hw you feel! When my girl started Kindergarten, I cried for two days, and was even having panic attacks. I have never had one of those before or since. I had troble breathing and everything! She was fine, she loved school, but I took it really hard. Now she is in second grade. She is doign great, and so am I. It does get easier. I think it is just the culture shock, especially for stay at home moms, that really gets to us. Kindergarten means that our baby is growing up. The child is gone durig the day, and we cant go with. It is hard, and I found it extremely depressing, rather then happy and exciting. My son is 3. I REALLY hope I dont respod the same way when he starts! hehe
Hang in there, I knwo it is hard, but it will get better. Maybe you can videotape an interview with your son when he gets home from school either today, or at the end of the week. I did that with my daughter, because it showed my support and excitement for her (even if I felt like i was dying inside).
I'm sorry you are so upset about kindergarten. It is really rough, and I found with my chld, other people didnt understand why I was as upset as I had been. Hang in there, and it will get better for you.