Tips for the day.
1. When you buy a bike that's not turned a wheel for 3 years change ALL the fluids and go over the bike checking every nut and bolt.
2. Always buy the best helmet you can afford.
3. If something feels wrong. Stop and check it properly in the pits, it could be the start of something catastrophic and life threatening.
A bike can be rebuilt, a human body may be not so lucky.
Glad you ok and the bike is not too bad
Best Wishes Rob