Hello all. Thanks in advance for reading. I have in the past been diagnosed with several different disorders, including a few that are generally rare in someone my age. Now I'm developing new symptoms, so I am going to the doctor once more, but in the meantime I'd like some opinions. It seems to me that it is unlikely that I have many unrelated disorders, and it makes more sense to me that I actually have only one, or maybe two, conditions that are causing all of the symptoms. I'll give a simple list of all symptoms toward the end of the post so if you don't want the in-depth details you can scroll down.
I am a 22-year-old white female (mostly of Irish, Scottish, and Welsh ancestry), occasional social drinker, smoker, not sexually active. The following symptoms began in childhood; depression, anxiety, insomnia, chronic constipation, recurrent ear infections and sore throat (which did subside when I had my tonsils removed at age 17). In adolescence and teenage years I developed some mild euphoria, paranoia, and other symptoms of mania, and was diagnosed with bipolar. I am on Lamictal and Cymbalta (the combination is working well for the bipolar symptoms). I also have chronic heartburn, diagnosed with acid reflux. I also developed hemorrhoids in late adolescence, along with abdominal pain, and symptoms of irritible bowel syndrome. I've been diagnosed with rosacea, with the facial redness and burning beginning in adolescence. It's growing more severe. Recently I've begun reacting to sunlight on any exposed areas, not just my face. After 10 minutes of sun the exposed areas turn bright red. It's not painful, just warm and uncomfortable. I avoid prolonged exposure so I don't know if the rash would get worse or more painful with continued exposure. I am also very sensitive to heat and humidity, and if I stay under these conditions too long I feel lightheaded, nauseated, and generally ill. Recently I have developed small sores inside my mouth, particularly toward the back of my throat. They're white-ish with a red border and aren't all that painful, just uncomfortable. That's most of the background, and now I'll list all of my symptoms.
-Bipolar symptoms; depression, anxiety, insomnia, hypomania, memory problems
-General fatigue, sleepiness, even if I sleep 9 or 10 hours
-Chronic, severe heart burn
-Recurrent nausea without vomiting
-Heat sensitivity (taking a hot shower causes flushing and itching on my chest and legs)
-Rosacea symptoms; facial flushing, heat, pain
-Poor circulation; fingers and toes sometimes cold and white, other times hot and red
-Swollen finger joints, but nowhere else
Many of my symptoms are those of Lupus, but I don't have much of the joint pain present in Lupus, so I don't know what else to think. Any ideas, guys?