My 1 yr. old lab seems lazy today and when I try to lift her normall perky tail she whines....WHY? Please help

I was thinking that she might have impacted or infected sacs. Also, she might be constapated or have an intestinal blockage or even a bowel ubstruction. Do you know if she has chewed up or ate anything she wasn't suppose to? If she isn't eating, drinking, or pooping normal, she needs to see a vet. Vomitting is also a sign of a blockage.