Talk to General Physician on Chest Fat Or Gyno?

Hi Respected Doctors, I'm a bit worried about my chest, left side have more fat than the right one i feel no pain in my body or any gland around my nipples, is it gyno or just because im overweight. i have joined gym aswell and lost almost 8KGs in 1month am doing hard work but the left side of my chest just got a bit tight not losing any fat from there im worried what should i do? keep exercising and doin workout? will i get rid of this side fat? please answer im doing a proper Diet aswell. Thanks!