Yep. For some reason anxiety surges may become worse at peri. Eating regularly can ease symptoms, i.e. every 3 hours - 24/7.
Is there a Nurse Practitioner at your Surgery who U might B able 2 C sooner? 3 weeks is a long time, my surgery has an on-line triage system - messages are read 3 times a day so that appts or phone calls can be arranged.
When R the surges worse, mine are usually in the early hours. I've used Valium with success in the 1990s, propranolol helped enormously and Bachs rescue remedy mouth spray too.