Then contact your therapist. As has been suggested, more than once.
I am sorry this is so huge for you. BTW, you'd be surprised who's a cancer survivor here, or has MS or Lyme Disease or any other issues. Step back and contact your therapist. If you are feeling suicidal, or think you might be, if you are this stressed then call your therapist and make an appointment and go and talk about this.
You need a doctor's care. As I told you in PM, I hope you get the help you need.
I really do. Make an appointment just like you would make an appointment to get a bone set or a tooth filled or any other reason you would call for medical care.
BTW, you can contact most therapists over the weekend. At the very least, you should be able to get the answering service so that your therapist will know there's an issue and you can both get started first thing tomorrow morning.
It is going to be okay but this is beyond the Internet's skill to solve these issues.
Go and be well.