ThoughtfulPrussianBlueSquirrel2038

I may start off by saying that I have anxiety so this may be unrelated to a serious pain. I have chronic sinusitis or a constantly blocked nose and am taking a form of spray I am really only supposed to be taking for 7 days but have done so for about a year now and I am hoping to fix this. Often, in the mornings I gradually and slowly wake up due to the blockage and this means I am rarely well rested but occasionally I get what I believe is apnea. I am in a half concious state, unable to breathe at all but take gasps occasionally from my mouth. I can't tell but it is most likely my nose is blocked when this happens. After a period of time that feels like forever I can breathe again to great relief. This happens perhaps once a week (when it is bad or memorable) but sometimes happens multiple times in a night. What is particularly worrying is that sometimes I feel as if my chest (left side and so heart) feels like it is going to explode and burst. In a little burst I lose all of my breath, and it feels like I skip a breath or a heart beat and my heart feels as if it is going to implode. This may happen once or twice. In the day, sometimes before bed I get a bit of dull chest pain on my left side that makes it feel like my left armpit is sagging or something but it's not really that painful, and I do have anxiety but it happens when I am not anxious. Sometimes I also get sharp pain in both sides and I'm sure this is natural and is really nothing as it goes after a few seconds. I am a typically anxious person so I hope I am of exaggerating but after shrugging it off I am worried in case this is serious and if so, i have not taken action yet so I would like to do so before ot is too late. Thanks in advance.