Postpartum anxiety

I have suffered badly with anxiety since I was younger but since having my first child it has got even worse, it has caused me numerous trips to the hospital thinking I’m having a heart attack and made me really poorly.

I have been better the past few months but since yesterday can feel it getting back again. Contact feeling of a brick on my chest and like I can’t breathe, headaches, feeling extremely tired, sickness.

I just wanted to know if there is any tips people could give me that might ease the symptoms or help put it at bay again.

Just want to feel back to myself again 😓

Thanks!