I understand your situation. You seem to be suffering from health anxiety symptoms. However more clarity is needed regarding your problem to decide on the severity of your condition. Don't worry it is not your fault, it is the hormonal fluctuations in your brain which is taking a toll on your mental health. It is easily manageable with appropriate treatment, so that dysfunction due to the same can be reduced and your quality of life will improve. Some counselling sessions and if needed medical help might be useful for you. I would also be more than happy to help you with that if you are looking for online assistance. Discussions will be held confidential. You can directly consult with me through Practo as needed. Online chat consultation is also available.

It doesn't appear to be a  Hallucination ..Most likely your anxious health related thoughts...Right... Evidence based treatment for anxiety disorders are Medications and therapy like CBT..So go for it.. Consult a Psychiatrist for detailed evaluation and Management of the case... Regards