My doctor put me on one anti depressant along with my usual mood stabilizer 12 days ago. For the past 2-3 days, I am feeling extremely energetic (enough for my mom to notice it), have been exercising regularly after not being active for about 2 months. Also, I was taking melatonin and sleeping about 9-10 hours but last night I was awake till 2 and slept for 6 hours. I'm afraid this is the beginning of hypomania. 

I have contacted my doctor but he hasn't responded yet. I want to understand if this is even concerning, and if yes, any tips to make it better or control it? 

Please help!