I have had pain in part of my left lung, shortness of breath and tightness around my lungs for a month or two now. I don't think its an emergency and have other health issues I need to get checked out related to bladder/ reproductive health. So I scheduled a check up. However other symptoms that come and go have been making my life miserable, for instance nausea, lightheadedness, hot and cold flashes, fatigue and my skin periodically feels like it's on fire. I'm exausted and worried but not sure that if I go to the Er I will get answers any faster. I need a second opinion, anythouths? I'm a 31 female other wise pretty healthy. Don't know what to do!