I am loosing weight without trying. Should I be concerned?

Weight Loss abnormal. If you are losing weight withot trying to lose weight, you need to be evaluated.There can be many medical conditions which can make you lose weight.You need to see your doctor who will way you, examine you and will order some blood tests to find out the cause.It can be one of many, from overactive thyroid, diabetes, malabsorption syndrome to cancer.Iam not scaring you but you do need to be tested.
Weight loss. Concerned? No. Observant? Yes. Keep a weight dairy. See doctor. That is the first step.