I would reccommend you seeing a dermatologist. A Dermatologist would be able to address a few of your issues at once. They will address your cystic acne-which being 23 is going to be very diffuclt to clear up. Once you reach adult hood, acne is harder to treat; but is treatable. Next a dermatologist will be able to give you a skin allergy test. You consuming a lot of soy products could be the issue. We are allergic to a lot of foods we eat, and we dont realize what our bodies are saying to us. When you talk to a dermatologist, make sure to ask them about a disorder called candida. Its when the natural yeast in our bodies get out of control.
Once your Dermatologist determines if you have an allergy or not, then he/she can refer you out to another physician to further address your symptoms. Cushings Disease does cause acne, but guess what? A soy allergy can cause acne AND asthma or nasal passage thickening making it difficult to breathe making you have to take a cold medicine, which would normally contain cortisol which would trigger elevated cortisol over time, which would cause hirsutism!!
Here are some symptoms of candida:
•Frequent stomach pains and digestion problems
•Skin problems (skin infections, eczema, psoriasis, acne)
•Foggy brain / Trouble concentrating
•Constant tiredness and exhaustion
•Obsessive compulsive disorder (OCD)
•Intense cravings for sugars, sweets, and breads
Alternatively here are symptoms of a Soy allergy:
Acne and other skin conditions, like eczema
Canker sores or fever blisters
Colitis and other gastrointestinal problems, including diarrhea
Conjunctivitis, or pink eye
Shortness of breath
Fever, fatigue, weakness, and nausea
Low blood pressure
I hope you have figured out your problem by now but if not, from what I have been reading soy and soy products may be your problem. They cause a hormonal imbalance and they are in almost everything. You should really check the ingredient label of all foods.