I really don't understand this at all. Years ago when I had a majorly overactive thyroid, I took propanalol in doses of up to 40mg 3 times a day with no problem whatsoever.
Maybe its because I have a combination now of underactive thyroid which needs thyroxine daily and the horrible menopause combination of symptoms. My body just isn't happy taking it regularly.
Since posting last night, I had the worst night's sleep and when I did sleep I had awful nightmares. So far today I have not taken any propanalol and by lunchtime the anxiety had disappeared. Still waiting for my doctor to ring but my mind is definitely made up - Femoston 2/10 for me now.