I have been taking propanolol for about 2 months now, i take one in the morning and if i find out i need to speak or do somthing in class i then take a second one just before. My concern is that i still get this heavy feeling, my heart does a flip when its my turn but then it doesnt continue to beat fast like it normally would, it just leaves this anxious feeling within me and although i used to shake a huge amount i do still find myself shaking a little. I was wondering if anyone knows if this is in my head, or if i should be taking more? My tablets are 40mg , i have a presentation coming up and i really want to be able to do it so id really really appriciate somones reply. Thank you