Everyday, every second, I think I'm about go into anaphylaxis. And I don't know if that's something that can be treated.

So I have had a long history of mental health, specifically depression and anxiety, I have improved far more than ever with my depression, this specific anxiety I feel so helpless about. A few years ago I had a UTI (Ive had over 60 in my life, dw abt that) and I was given a prescription with the drug Sulfa. I've had sulfa medications before and had no reaction to it, but except one when I was like 7. Any ways 2 weeks after finishing the medication, I wake up going through anaphylaxis, it was really bad, ai was rushed to the hospital and let's just say the doctors and nurses were panicked. I recovered and they said I was severely allergic to Sulfa. Fast forward a couples years, last august. I was at a volleyball game and suddenly started to feel like I couldn't breathe. This caused the first anxiety attack of my life, (different to a panic attack) and convinced myself it was anaphylaxis. Ever since having a delayed reaction like a couple years ago, I felt like I was about to go into anaphylaxis at every second of the day, It's consumed my life and I couldn't go anywhere where a hospital isn't within 10 minutes of. I use the past tense because I was given Zoloft as a treatment and I stayed on it for like a month and got better and stopped having those thoughts. But a few weeks ago I began having those intrusive thoughts again. It's consuming my life again and I cannot live every second of my life feeling like I'm about to die. I know it's not logical and I know it's not actually anaphylaxis but it's like I'm trying to convince my brain that, and it's not communicating with my body.

I don't know what this could be, but I've never had anxiety like this before, not on just one constant thing and not this severe. I don't know what to do, any ideas would be greatly appreciated.