Feeling super anxious that I'm seriously ill

Long story short but when I first had my baby about 8 months ago within the first 8 weeks I had a suspected Transient ischaemic attack (TIA). I had an MRI scan and they ruled it out and diagnosed me with Auras. However the MRI was after 48 hours which I only recently found could make the MRI void as TIA would not show. I got put on medication so the Auras wouldn't happen again for about 6 months. I've been fine. But about 3 weeks ago I was having trouble with my eye sight mainly reading. I struggle to read text on my phone and my eyes felt strained also been having headaches. I've never had issues with my eyes before and don't wear glasses. I decided to go for an eye test. The optician doing the test found my optic nerves are swollen on both eyes and she wanted to drive me to hospital then and there! She said she's only see this once before and it could be pressure on the brain. She rang an ophthalmologist (eye doctor at hospital) to get a second opinion and they said it's urgent but not straight away. So I'm waiting on a appointment letter from the hospital which will come in 1-2 weeks. Its been 5 days now and my mind is racing. I still have headaches and vision problems and keep thinking the worst. I've also been getting chest pains but I had them before and it was nothing. Everytime my head hurts I think this could be it. I know I need to calm down and just wait and see but it's hard in a situation like this.