Cyanosis - #9017

Last week, I noticed that my lips started turning a bit bluish, especially when I was out walking or doing any physical activity. At first, I thought it was just the cold air, but then I realized it was happening even when I wasn’t outside. I’ve also been feeling more short of breath than usual, and sometimes I get lightheaded, which is really unlike me. I’m a fairly active person and don’t typically experience issues with my breathing, so this change has me a bit worried. The blueish tint on my lips didn’t go away, and now I’m noticing that my fingers seem to have a faint blue color to them too, especially when I wake up in the morning. I’ve been looking up symptoms and saw that this could be a sign of cyanosis, which seems to occur when there isn’t enough oxygen in the blood. It made sense to me because I’ve been feeling a bit more fatigued, and sometimes my breathing feels shallow, like I can’t catch my breath as quickly. I didn’t think much of it at first, but now the blue tint doesn’t seem to fade, and it’s making me anxious. My family keeps telling me I should get checked out, but I’m not sure if I’m overreacting or if this is a serious problem. I know cyanosis could be caused by lung or heart problems, but I’ve never had issues like this before. I did a quick self-check and realized I haven’t been able to exercise as much as usual because of the shortness of breath. My chest feels tight at times, and it’s uncomfortable. The bluish color on my lips is especially noticeable after exertion. I’m not sure if this could be a sign of something like heart failure or a respiratory issue, but I’m really concerned. I’m wondering, what exactly causes cyanosis? Is it something that can happen in a healthy person, or is it usually linked to a bigger issue? How serious is it, and what kind of tests should I expect when I see a doctor? Will the doctor be able to tell if it’s a lung problem or heart-related just from the symptoms, or will I need some scans or blood tests? Should I be worried about cyanosis getting worse? I don’t want to wait too long if it’s something that needs immediate treatment. Also, is there anything I should be doing in the meantime, like changing my routine or avoiding certain activities? What should I keep an eye out for that could indicate the cyanosis is getting worse? I’m just trying to make sure I’m not missing something important. Has anyone else experienced cyanosis like this? What did your doctor say about it, and how did you treat it?