thanks for your query on HCM,
feeling a light headedness or drowsiness
may occur due to several reasons like hypotension
, diabetes, hypoglycemia
, ear problems, anemia, heart diseases etc.
So i will suggest you to check your haemoglobin
level in blood. Also do check your blood pressure because sometimes due to low BP or even high BP can rise to such feelings. Along with these you should also do a fasing and post-prandial blood sugar report. Do consult a physician to get examined locally, also better to have an ECG to have an idea of your heart condition.
For frequent cold
you may have montelukast-levocetrizine condition once daily at night for 2 weeks.
Dont be anxious so much. You can have anxiolytic alprazolam 0.5 mg once daily at bed time to releive your anxiety and have a sound sleep.
I think my advices will be of help to you.