Hi Vinay, sorry you have to be a member here because of your illness, but welcome to LADVT.
About the weight, I would suggest walking and swimming as a way of staying avtive, we have to stay away from extreme sports where you can cut yourself or hit your head, it could result in more complications. Being on anticoagulants makes it harder to control a bleeding, and if we hit our heads, internal bleeding are always worrisome and hard to detect if you don't go to the hospital.
As for the Blood Pressure, I am not a doctor so I would never suggest anything, I'm not qualified to do so, ( you will have to understand).
Many people attribute the weight gain to Warfarin itself. We all react differently to this drug.
I hope this helps...