You're asthma has been provoked by these symptoms, I would recommend staying away from dangerous gases and stick to a safer environment. Who knows what they could to you and your conditioning.
Echo Greek was busy on a Saturday morning, streets were filled people, and the traffic was horrible.
That is until we see one man (teenager) doing something on a rooftop. It was Marco Diaz.
He was humming away as be was drawing on a notebook. He was just having sometime to himself.
Marco: "Hmm, it could use more red on this part." As he's getting a red marker out and started to ink down on his paper.
He checked the time and saw that it was time to start heading back home. He grabbed his stuff and put it in his backpack.
He went down the stairs and into the sidewalk as multiple traffics were occurring, and very smokey from the cars themselves.
Marco: "Ah! How bad is the traffic today geez!!" He keeps walking. He was fine until he tripped over and fell down hard.
Marco: "No no ah-" Marco was struggling to breath from the air around him. His lungs were pulsing and his heart beating quickly. Marco felt like he was suffocating, until something inside of him changes. His lungs start to take control and somehow inhale the smoke without any drawbacks. But his heart was racing. Marco darted his eyes around and started to panic, he soon shuts his eyes as smoke gulfs him and soon the area impodes with a massive shockwave full of smoke.
The townspeople were at shock and were having problems breathing, as they break for some proper air. Soon enough we see what is causing the traffic.
"I said I'm a free American!!!" A man was in the middle of the street protesting. People were getting pissed off as they were being held up.
Meanwhile
Back at Marco's home, all was quiet until the vents were being heard from all around the house. In Marco's room the vent started to shake as smoke came out of it and landed on the ground. It also went away and showed Marco. He looked and was in confusion and shock that he was back home.
Marco: "Huh?! How did I?! One minute I was choking and now I'm fine and in my room. What the hell happened?!"
He then sees smoke some from his hands.
Marco: "Whoaly crap, this is crazy." He breaths and suddenly realizes.
Marco: "I'm fine..." He looks back at his hands as the smoke soon faded away from sight.
Marco: "This is weird. What was the doctor telling me?"