I am mostly a fast walker but I tried to start slow running and I had throat (and further down) pain from breathing harder than usual. It hurt and I still did it it took the rest of the workout and about an hour after to have the soreness go away. I drank 4-6 glasses of water before my workout and 4-2 after, the pain reminded me of when if I am breathing heavy in harsh cold weather, it is spring/summery maybe damp air but not freezing cold : / I was wondering the same thing : /
I don't know about the OP but I was at 4.5speed 15%incline on the treadmill (60sec running, then walking 60sec x3 then cool down, my first attempt of running in a long time :P).
There are breathing exercises you can learn; I imagine you can find them online. If you take really shallow breaths, that makes exercise harder. Taking deep breaths while exercising is more difficult, but it's much better for you. Part of it might be your form; if your posture is bad, that can prevent your lungs from filling up entirely. It also might be sports-induced asthma. Or you might just need to build up your stamina and endurance; if it doesn't get better, maybe see your doctor to see if you might have asthma.
I think this is normal- it happened to me and still does to be honest. It depends on how hard I push myself though. It was awful when I first started jogging, it felt like I was going to die because I couldn't catch my breath! But I didn't, I just took it slow, walking and jogging until I can now jog for most of my route without stopping to walk- and I can breathe ok during too. If you just take it slow and build up you will find it gets better. if it doesn't then you probably want to see a doctor and get yourself checked out.
I have COPD so breathing is a real issue with me. I get Rales and wheezing sometimes. Sometimes I'm perfectly fine going all out and getting my heart rate elevated to the 80- 90% sometimes it's all I can do to breathe while just walking up the hill
When weight lifting I make a conscious effort to be sure to breathe through nose and exhale full not like breathing through a straw but really push the breath out with force.
Exercise induced asthma also could be a possibility.
personally I can never get my legs to go fast enough on a treadmill to get my heart rate to a respectable rate- I need to do burpees and squat jumps or things that use my whole body to really feel the burn- and like I said heavy lifting gets the breathing up there too.
Try going slower? Or train yourself to breathe in your nose and out your mouth (This took me years to do). My breathing is 3x slower than the average person (superlungs rofl). I usually focus on my breathing when I have my pace set and try to breathe according to my stride (like breathe in 2 steps breath out 2 steps and then I start counting like I'm doing some dance routine or something). It takes a while to get used to but practice and patience is key.
Also I want to recommend swimming if that is available. I learned a lot of breathing techniques doing that. Like how to take a min. of 3 breaths during a 50 yard sprint, how to pace your breathing during longer events (which sucks cuz your brain is yelling at you for oxygen sometimes). Also taking a breath every other stroke on butterfly and breaststroke and every 3-5 on freestyle. It's been over 4 years since I swam but running seems to keep my lungs pretty darn good.
This is what I was told to do when I started running. I breathe in through my nose for two steps and out through my mouth for three while counting in my head. It has kept me from getting cramps while allowing me to run longer.