My heart beats too fast when I wake up after a nap/in the morning and also randomly through the day. I don't feel particularly worried about anything but this constant fluttering feeling in my chest is distracting and if I think too much it feels like my throat is catching and I can't breathe very well. I got some blood tests done but things seem to be normal (I had similar symptoms earlier with a Vitamin B12 deficiency) please help, it's really interfering with my work. I did get in touch with a therapist a few months ago but I didn't persist because it was expensive and I didn't feel like it was really helping me.