I would like to know someone else's story about their experience with Conn's syndrome. What were their symptoms before they were finally dignosed, and what is their treatment (medication or surgery). What other info can they offer. I have found no one who has even heard of this disease, let alone actually have this condition.

This is not medical advice. I am not a doctor, just someone confirmed with the condition.
Conn's Syndrome is a subset of Primary HyperAldosteronism. It is caused by a benign tumor of one of the two adrenal glands. Primary HyperAldosteronism can also be caused by an enlargement of both adrenal glands.
The condition results in excess production of the hormone aldosterone. Your blood chemistry can be greatly altered, probably showing low potassium and high sodium. CO2 and creatinine seem to also be variable though the blood test results can be affected by the unusual chemistry created by the Conn's.
There are many symptoms for Conn's. Fatigue, weakness, tight and cramping muscles, uncontrollable high blood pressure, frequent urination at all hours of the day, sudden strange sensations of the skin or soft tissues of the body, muscle twitching, temporary paralysis, chest pain, possible heart palpatations, and others. A day spent searching Google and reading forums can help find more information.
Aldactone (Spironolactone) is a usual treatment for Conn's, though eventually laparoscopic surgery might be an option if only one of the adrenal glands is involved. Inspra is another, more costly drug which may be used if Spiro side effects are not tolerable. I personally use the Spiro (300 mg / daily) and do fairly well with the side effects, especially when I compare them to how I previously felt when untreated. My dosage is good for me, but lower dosages may be good for you. It takes a few months to find what works.
Study the internet for information and read with an open mind. Do not expect to find a doctor who is an expert in this condition. It is too rare for any doctor to have seen many cases. Feel lucky if your doctor has heard of it. Don't be hesitant to talk to a treating doctor about what you are feeling during treatment. Also be active in your treatment. Make friendly suggestions and / or ask questions about your treatment. A nephrologist or endrocrinologist (perhaps both) may be more likely to have heard of the condition. Conn's is not a common cold, it is very, very uncommon. If you have it, learn to be happy that you have found out you have it. You can find treatment to feel better.