That's not weird - most girls have an even number of earrings.
That's like saying - I can't leave home without putting an even number of legs inside my pants.

Trry, a seretonin imbalance does indeed contribute to OCD, and SSRIs and other drugs that increase seretonin levels (the same drugs used to treat depression) can be used to treat this imbalance.
However a GOOD psychologist/psychiatrist should begin treatment using cognitive behavioural therapy (like what you describe you achieved yourself - by changing your thoughts to change your behaviours). Only if this is unsuccessful, should they resport to pescribing drugs (in combination with the therapy).
Not everyone is capable of changing their own thoughts to eliminate the deep seeded-problem behaviours that are involved with OCD, and often people will need an experienced professional to guide them through this process.
Should the cognitive-behavioural therapy not help, psychiatrists do indeed have every justification to pescribe drugs as there is a vast body of literature out there that indicates that on average, they do significantly improve OCD symptoms.
Don't completely discount psychology/psychiatry based on your one experience.

Also remember, you can't be officially diagnosed with OCD unless the symptoms are having a significant impact on your life.
So many of you who are describing OCD symptoms wouldn't necessarily actually have OCD.
E.g. having a "fear" of open doors at night, resulting in closing them behind you isn't OCD.
Lying awake at night obsessing and thinking about whether or not you remembered to close all the doors and the complulsion to repeatedly get up to check that they are closed to the point where you lose so much sleep that your are unable to live your life properly - that's OCD.

Apparently a mild (and usually temporary) form of OCD where there is a compulsion to try to make everything symmetrical on the body is very common in children. I used to be like that when I was a child. It would reach the point where if I accidentally hit one shoulder, I would intentionally hit the other because I didn't like having that sensation on one side but not the other.
This is interesting because in adulthood, OCD is the most debilitating of all the anxiety disorders and it is very difficult to reduce symptoms.

Sort of like a tram.

Level 13 is a killer!

This video emphasises how ridiculous homeopathy is.
40C is a fairly common level of dilution for a homeopathic remedy. Have a look at about 2:55 at 10 million, million meters. Take a portion of the active ingredient the size of a grain of rice and place it in a sphere of water the size of the entire solar system. That's actually more concentrated than 40C.
The crazy thing is that homeopathy users believe that the more dilute the remedy, the more potent it is!
Homeopathic remedies can reach dilutions of up to 1500C. To understand how dilute 1500C is (and I quote from a website: "CRUSH up a piece of rice. Take one GRANULE. Drop it in a sphere of water the size of the solar system... repeat that 2 million times."
1500C must be powerful stuff!

Even if it were real (which it totally isn't), it still wouldn't be a drawing. The only "drawing" would be the one that appears on the computer at the end of the journey, which would only be as big as the screen - and certainly not the world's biggest.
I suppose I'm "drawing" wherever I travel?

I agree with Carl.
Altruism in animals doesn't necessarily equate to morality.
Seeing as rhesus monkeys are such social animals, they tend to be strongly motivated to look out for the wellbeing of the group. A rhesus monkey that is only out for him/herself is more likely to be shunned by the group for not contributing and would therefore be less likely to survive in the wild.
This behaviour is likely to be an evolutionary behavioural adaption.