Panic & Anxiety Attacks

I've been diagnosed with hypertension. If I don't take my medicine (propanolol) I will freak out over the smallest things, I get scared and am afraid of every possibility and my mind just starts racing with a million thoughts. It gets way out of hand. Someone can be just sitting there quiet and so can I, and I get worried by it like something is truly wrong. Like they hate me or just want me gone. Its scary. I occasionally have trouble sleeping. But I find a comfort item to sleep with under my pillow, I have no clue, but holding something under my pillow makes me feel better lol. I am always in constant unease though if I'm not on my medicine. Like I feel like I need to do something or I am somehow doing something wrong. I worry what people think of what I think of something. I worry what people think of me. It makes me wanna hide so they can't see me so I can't mess things up or make things worse.