This is an important one to be completely straight about, because your health matters too much for anything less.
The honest answer: no
A psychic reading cannot tell you about your physical health, and it is never a substitute for medical care. A reading can't diagnose a condition, confirm or rule out an illness, interpret symptoms, or tell you what's happening in your body. For anything health-related, the right place to go is a doctor or qualified medical professional — always.
We're being this direct on purpose. A reading is a tool for insight and reflection, not a medical instrument, and treating it as one could mean delaying care you need.
A serious warning
Be extremely cautious of anyone who claims they can sense an illness in you, "see" a health problem, or — a notorious scam — tell you you're cursed with sickness that only they can cure for a fee. This is one of the most harmful cons there is. It preys on fear, and it can stop people getting real help. It's a glaring red flag, and no genuine psychic behaves this way.
What a reading can gently offer
The only honest role for a reading near this topic is emotional: perspective on how you feel, the worry you're carrying, or the stress around a difficult time — purely as reflection, alongside (never instead of) proper care. If anxiety about your health is weighing on you, please talk to your doctor and lean on people you trust.
In short
For your health, see a medical professional — every time. A psychic reading is for guidance, reflection, and entertainment, and it is not medical advice. If you'd like that kind of reflective space for something non-medical, you can start a reading here.