A.G.
Our 8yo has been diagnosed with anxiety, and many of his struggles are similar to what CoCoMom described. He is a perfectionist, and is extremely hard on himself. Even when he was younger this was an issue, wanting his drawings and handwriting to be perfect. Now it's centered around every grade needing to be a 100, even when he's working on challenging subjects. That is his expectation, not ours. He has extreme anxiety before tests, causing all sorts of stomach issues, but he usually ends up doing well on the tests. My brother was/is exactly the same way.
He also struggles with time, and has since he was very young, even as young as 3 or 4. He hates birthdays because he worries about getting older, moving out of the house, and eventually getting old and dying. This is extremely stressful for him. He struggles with it for weeks before his birthday, and for a bit afterward too. He also LOVES the holidays, but gets so upset at the thought of them ending that he begins getting anxious about when they will end before we even get to Thanksgiving. I spend a ton of time with him trying to help him learn to appreciate the moment. He has a calendar in his room where he can check off the days, but it's more so that he can see that we still have so many days left to enjoy.
He gets anxious at the end of the school year because he loves school so much that he doesn't want it to end, but then gets upset at the end of the summer because he loves summer so much that he doesn't want that to end either. He just doesn't handle transitions well, but he doesn't have behavioral issues either. He just gets anxious and sad, but he doesn't behave badly.
As for seeking help, his anxiety has always been an issue, and we've discussed it off and on (briefly) with his pediatrician for years, but it didn't become a major concern until this school year. This year his anxiety intensified. We started asking for help from the school counselor. Our son loves her, and feels comfortable with her, so we figured it was a good place to start. I'm not sure how much she has really helped him, but he likes knowing she is there to help him, so that alone may help him some with anxiety at school. His teacher this year is also fabulous. Her daughter has always struggled with anxiety, so she is good about noticing when he is feeling anxious, and she tries to help him feel more at ease.
I also met with his pediatrician who knows our son very well. We discussed having him meet with a psychiatrist or psychologist, but feel that my son would feel even more anxious in that situation. He feels that what we're doing now is working best. Our son is happy and well-adjusted most of the time, and we help him through his anxious times. He did suggest that our son spend some time talking to my brother about how he deals with his anxiety. My son loves his uncle, and it will likely help him to know that he isn't alone in feeling anxious. My husband, oldest son, and I are all extremely laid-back, and this is obvious to our youngest son. He feels like the odd man out sometimes, and has expressed to us that we just don't understand how he feels. It breaks my heart when he says that because he sounds so alone. The doctor suggested that my brother may be able to give our son some tips on how to handle the anxiety, but even more importantly, could offer emotional support.
I'm really sorry this got so long. This has been a long, difficult road for us this semester, not knowing what to do. Like I said, he is so happy most of the time, but then when he's in a bad stretch - it's awful. I hope that you find the help you need.