1. You are perfectly normal and you can do every time of physical or mental activity without any hindrance.
2. TSH high - indicates Hypothyroidism - which means you will have to take Thyroxine
to compensate for lack of it being produced by your body.
3. It is a very common problem with no impact on your health.
4. Please visit a physician with test results who will guide you further.
5. Be relaxed, no need for worry.