I've been feeling some pressure on the left side of my throat lately, and it's kind of hard to breathe at times, which makes me want to cough. There's this strange feeling on the left side of my chest too sometimes. I can still take deep breaths without any issues, but my pulse can be a bit high, like around 100 beats a minute. Generally, my health is fine, and the only medication I'm on is birth control pills. Should I be concerned about this? I'm traveling abroad right now and will be for the next two weeks, so I'm wondering if I need to do something about it or can wait until I'm back home.