As for her knocking her water bowl over, she may be trying to soak in it, and it may be to light to handle her in it or climbing on it. Try getting something that is heavier, that she can not knock over and that she can fit in as well. As Danielle said to much moisture is bad and can cause skin problems.
Looking at the picture you posted, her belly scales look to be somewhat translucent looking. If they usually look dark, then this is definitely a sign she is in pre shed.
There are 4 basic stages to the shedding process
1) Pre shed - we can not always tell a snake is in it but some signs are the translucent belly scales, hiding more, grumpier, rough feeling skin, eye color slightly off, skin color slightly dull
2) Blue - this is when the eyes get cloudy or "blue" due to the secretions which loosen the eye caps and skin, the skin also takes on a light or discolored look. Your snake may be really grumpy or nervous during this time as they can not see very well during this phase
3) Clear up - this is the stage right before they actually shed, the eyes and skin clear back up to how they would normally look
4) Shed - this is when they actually shed the old skin off to reveal the new and improved look
This process varies for each snake, generally small ones like yours are done the entire process in a bout a week but some take longer. I have one small one who takes a week and a half, one adult who takes about 10 days and a yearling who takes closer to 15 days, if varies with each snake.
Hope this helps.