Depression remedies

Can you please tell me?
My surgeon told me that the next step for me is surgery. Eventhough my Depression and Anxiety are treatable with medication, do you know if it is a Disability in Ontario?

I’ve been experiencing alot of different pains, recently.. first there was the constant sick feeling in my stomach after I ate, and that’s been going on for a few weeks now, although it just seems to get worse. I’m supposed to get my period in a few days, but today I had these sudden excruciating pains in what felt like my left ovary, and they literally left me doubled over in pain, along with the sick feeling in my stomach. I could barely walk to my classes, and I was so frustrated and sick of the pains and stomach aches, I started crying right there in class, even though I knew it was mostly hormones. I know some girls have cramps before they start, but I’ve never heard of any being so persistent and severe. The cramps died down a bit after I took a few painkillers. The sickness in my stomach lasted pretty much throughout the whole day, but I was still hungry at lunch, so I had a sandwich and a bottle of water, so the sickness turned into a dull pain. I then decided not to go home and make a big deal out of it, so I finished up the last two hours of school.
Later on I noticed something different, something that felt like a potential pain in the downstairs region, so I went pee, and towards the end of it [like when my bladder contracts, so to speak] there was this horrible, droning pain in my bladder, that lasted for about 10 seconds, then died down again. It used to hurt when I walked, but now it only hurts when I stretched it somehow, like spreading my legs too far or putting my arms over my head.
My first thought was a possible bladder infection, but that would mean I would have to go pee really frequently, which I don’t seem to do, and there was no stinging or anything like that, just pain AFTER I pee. No blood in it or anything, it looked perfectly fine :/ any ideas?
For the cramp thing, I looked it up and it turns out there’s a premenstrual disorder called PMDD, which describes exactly what I seem to be having. Along with the depression, it would make alot of sense.
As for the stomach thing? I’m not a health freak, and i’m not obese either, just flabby. I havn’t been changing my diet in any way, the sick feeling just started a couple weeks ago.
As for the bladder pains, it’s only been happening today, whenever I pee, but my friends think it sounds pretty serious, but if I tell my mom, she’s going to make me see a doctor. D:
Maybe it’s for the best? >.<
I don’t know what’s happening to me. Please help.
note:
-I’m 15
-I’ll admit I take in a bit too much caffeine, sugar, and carbs.
-Occasional smoker.

I have all of these pretty severely….Sometimes so severe I cannot work. With the Fibromyalgia, my pain keeps me from working for days. And then with the depression it can be more crippling emotionally than the fibromyalgia & can keep me from working for days at a time. I used to be able to do things that now I am unable to do. I was just wondering if either of these are qualifiers for disability, even short term.