Spot on my leg worries me that i might have melanoma. but im also a hypochondriac and have thought i had other diseases which was proved wrong.advice?

Lesion: Recommend head to toe skin examination by a dermatologist annually . This would be a good opportunity to get it checked.

Have your doctor: check this mole and a total body skin check to allieviate your fears. Also use sun screen.

Use ABCDE RULE: It's best to see a dermatologist but a good rule of thumb is the abcd guidelines a=asymmetry of lesion b=border is irregular c=colors are multiple and not consistent d=diameter is greater than 6mm e=evolution of lesion with changes and enlargement.