People experience depression in different ways. This symptom checklist can provide you with a rough idea as to whether you are experiencing depression. Note any and all that apply to you.
Feeling worthless
Change in appetite
Avoiding contact with other people
Less energy than usual
Not looking forward to anything
More aches and pains than usual
Unable to concentrate like usual
Feelings of guilt
Loss of interest in hobbies and things
Feeling hopeless
Feeling sad and empty
Sleeping less
Dwelling on thoughts of death
Unable to make decisions
Any of these symptoms can indicate that you're not feeling up to par. Merely checking one or two doesn't necessarily mean you're depressed, but the more items you check, the greater the concern of possible depression.
Anyone can have these feelings for a little while. You should only be concerned if these symptoms last for more than a week or two. However, if you're having thoughts of suicide or death, get help, now.