Anxiety

Had a panic attack last night. I was going to sleep and I started having some crazy thoughts while in bed, maybe that triggered it. Yeah expected someone to kick down my door and slit my throat. I have to cross my legs so I don´t feel like some evil spirits will attack me. When I lay on my side I couldn´t stop thinking that some monster creature hand would come up under the bed and grab my face and suffocating me. I almost felt it happen because I almost expected that to happen, it´s hard to explain. I sat up when I hadn´d been able to breathe well for a while, I did what I always do and sat in the sofa but that didn´t help, I felt a huge weight when walking like I was carrying something that weighed 30 kg. Went to the bathroom, looked in the mirror, my eyes were almost completely red. Went back to bed, couldn´t lay down for long, sat up until I was so sleepy and exhausted I just fell asleep. All this time I periodically felt like I was dying. 

I´m having these panic attacks now regularly and am a little worried about that. Starting to think maybe this isn´t panic attacks, rather some bad effects from my meds cause they all happen shortly after I take them. What I had usually done to soften this was telling myself this wasn´t killing me, was not dangerous but that didn´t work now.