Hello, I Have A Few Problems That Is Making My

Hello,
I have a few problems that is making my life messy. I am stating them as follows:
1. I sweat heavily since my childhood. Even my palms and feet perspire a lot irrespective of any season.
2. I have gained my weight and my heart beat is not normal and fluctuates and i become tensed within a fraction of seconds. This is happening recently and never happened before and sometimes it feels as if a balloon's air is squeezing out and i am getting tired easily .
I need to sort out these problems. What shall i do to overcome these?
Awaiting for some good suggestions.
Sincerely
Roy