U can try david orthodontics @ megan avenue 1. I'm not sure bout the price though.
There is also Kl int. Dental clinic in jln yap kwan seng. But i heard their charge is quite high.

My experience with damon braces braces also the same. I only feel "tight" at the teeth (no such terrible pain, except if biting into solid food on the 1st week of after adjustment ). So, I considered your experience quite normal.

For daily care, I brush teeth after every meal (using normal toothbrush, then interdental toothbrush to brush between bracket). And for before sleep routine, I also floss and gargle with mouthwash.