question: Hi, I am on Imipramine 100mg (hs) and Zoloft 150 mg (AM) for PTSD.I also take Clonazepam 2mg hs and i mg in the am.I have a resting pulse rate of 100. My BP is 116/74. My throid work-up is negative.My physician is considering adding a low does beta blocker, but is concerned about my BP.I am not orthostatic.What do think??