I started running 2 1/2 yrs ago, then had to give up after 8 - 10 wks through injury. I wasn't able to restart until last May/June.
On my physio's advice, I just started with walking 10mins 2/3 times per week, then 20 mins, 30 mins etc.
You could try that as it sounds to me as if you're going too fast at the beginning. (Easiest thing to do, I'm always doing it, and then get knackered later on
.)
Alternatively, you could do run/walk combos - say in 5 mins bursts eg run2/walk3, that way you keep on the move, but not to the extent that it makes you keel over
. IMHO, I think it's better to try and keep moving, both physically and mentally, than run, get so out of breath that you have to stop. Think it would also help you to rebuild your stamina etc.