I am 6 weeks into my 2nd cycle, Test/Deca, and I have gained 10 lbs so far. Last several days, I have noticed that I am easily out of breath, just walking a few blocks, and taking deep breath frequently. Also I can feel tightness in my shins when I walk several blocks.

Questions I have,
Will this go away soon once my body adapt to the new weight?
Should I start doing some cardio?
I have scheduled for blood test (female hormone panel and lipid panel) on Wednesday. Is there test results indicate why I am out breath easily?
Should I go see my doctor?

Thanks guys.