You develop stretch marks from gaining weight, or pregnancy, but not from losing weight.
Gaining weight can cause more stretch marks.
If your stretch marks are red you're definitely gaining weight. If your stretch marks are white you might be loosing weight. (for Caucasians)
You mainly get stretch marks from gaining weight. Stretch marks are a result of the skin stretching. There are many different cures for stretch marks including cocoa butter.
Yes. It means you're gaining weight/you are expanding too quickly for your skin.
Number one reason people receive stretch marks is from weight gain.
No that is impossible. You cannot gain muscle mass without ever gaining weight.
Ether you are gaining weight or you are bloated.
From gaining weight and losing it faster than ur skin can adjust to it
By controlling your diet.
There is no specific weight for a pregnant hampster. The only way to know is if the hampster is gaining weight and acting strangely.
It is possible to gain muscle without gaining weight if one loses an equal or greater amount of non-muscle weight (fat, water, toxins).