Idk what's wrong said...
Whenever I run, job, or simply go up stairs I have trouble breathing when I reach the top or while I'm running or jogging, when I run/jog I start to pant and wheeze and saliva builds up in my mouth and becomes thick, I'm okay for my age and height, not over or under weight, I believe I have asthma but have never been treated for it so it has only made my condition worse as years go by. I would like other people's opinion before I try to see a doctor.
Sounds like you have Asthma..........Go see your GP as this condition can be controlled and treated with different types of inhalers.
If you don't go and see your GP then you run the risk of the condition getting worse.