I’m so sorry to hear you’re going through this. The fear and anxiety you’re feeling right now are completely valid and, as you can see from this thread, something many of us have been through. It’s a truly terrifying time.
The most important thing to remember is to take it one step at a time. The period between a doctor’s suspicion and a definitive diagnosis is often the hardest part, so please be kind to yourself. Use this community for support—there are so many people here who understand exactly what you’re feeling.