How much is to much?

I have gain close to 40 pounds in a years time, is that to much? Should I run see a docter or what? And what if anything could have made me gain this cargo I havent changed my eating or my extersizing traditions. 40 pounds is a lot. It puts you inside the obesity scale. If you think that you are achievement weight minus over eating later you do need to see a doctor.
Yes, that's an extreme revise for having not varying your eating or exercising traditions. Have you started or stopped a medication? Anyway, you should see your doctor.