Yes, or you could get hyperactive.
Hyperactivity could come from add or adhd but it could also come from a sugar rush.
Not all dogs are "hyperactive"; it depends on the breed. Some breeds are higher energy than others, but ALL dogs need exercise. If your dog is acting hyperactive, it could be a sign that he/she needs more exercise. He/she could also be trying to get your attention for something (like the dog needs to go out, etc).
I definitely think you should see your doctor, it could just be REALLY dry skin which has caused your nipples to crack open and possibly be more sensitive. or it could be serious. How long has your nipples been like that?
I have pain in both nipples what could be the cause?
TWEAK UM! When a woman is aroused her nipples harden. OR you could always turn down the heat cold nipples=hard nipples
It depends, you could be pregnant.
No
when they are horny
It could be puberty.
maybe it might be a symbol that you have milk in your nipples but sometimes you have white you might not have some white on your nipples but some people don't it could be possible to have white if your pregnant
Nipples are not considered food and are not meant to be eaten. Nipples are a sensitive part of the body and should be treated with care and respect.