For good or ill, your current state of health has taken your lifetime to develop up to this point. In other words, your health is the long-term accumulation of your history and environment, and whatever daily habits, attitudes and activities you have practiced, knowingly or unknowingly.
If you are not taking these basic steps daily, they are almost certainly contributing to your symptoms. If you genuinely feel like your symptoms are life-threatening, by all means visit your local ER. If not, hit pause for a few days and see if you can notice positive changes from increasing your level of attention to self-care.