Suggest Remedy For Frequent Panic Attacks And High BP

I am currently suffering from systemic lupus, Multiple Sclerosis, and I have Charcot foot as well as a severe MRSA infection in my blood as well as Gram Negative rods in my blood. I am restricted to a wheelchair because my feet are so bad from the Charcot foot. I used to get panic attacks every once in a while however now I am getting panic attacks every 1 to 2 hours for the past 24 hours. I seem to get them worse when I eat and when my nose gets stopped up. Should I go to the ER or is it just my mind messing with me? My blood pressure this morning was very high 188/98, 196/102, 180/98, the last reading was 133/80 also my blood pressure cuff was saying that I have an irregular heart beat. I am extremely frightened and also extremely frightened to take the Lorazepam the doctors gave me because of the high dose pain meds I am on (oxycodone IR 50mgs every 4 hours, and the lorazepam is .5)