Symptoms and what to expect down the road

So, the key symptom that prompted me to see the doctor is severe random diarrhea. I know, not a topic people like to discuss. Hoping though, that someone else experienced the same. Over the past 6-9 months my BM's have been very unusual, and I wasn't able to associate them to any patterns. I would have excruciating pain in lower abdomen, and horrific diarrhea - very watery and gassy. This would happen for a few days. Then a few days of constipation. And sometimes (rarely) just normal. I also have experienced urge incontinence -peeing a little when sneezing, coughing, laughing, etc - even though I didn't feel pressure in my bladder. Lastly, I would have random nausea. Never actually vomiting, just intense nausea that would last 10-20 min - maybe about once per month.
So, I have learned I have 14cm complex cyst on my right ovary. I am scheduled for laparoscopic surgery on Dec 6. They're going to remove the cyst, ovary and Fallopian tube. If needed of course, they're remove anything necessary. I'm a little worried because the cyst contains solids and my CA-125 results was 105. But I am well aware the proteins iny blood could be elevated due to other problems like endometriosis.
Anyway, finally to my questions: have others experienced the same symptoms? If so, has anyone who had these symptoms alleviated following the surgery?
I'm so hopeful this will change as the diarrhea can be nearly dabilitating and interfere with daily activities.