I fell from a chair a little I over 2 months ago. The chair fell over on my leg and it ended up bruising way down deep under the skin. The bruise was barely visible but was super tender to touch. Sense the fall a hard numb knot is on my leg that will not go away. It itches often and it sometimes hurts to walk.
When a chair fell over your leg the force of the chair wasn't enough to break your bones or injure your ligaments however it caused a localized contusion to your skin and tissues under the skin, this can be associated with some bleeding under the skin and a clot can form. It can take a while to go away, but it will surely get better over time. Simple pain tablets should help, and the itching should get better. If you think that it is rather getting worse the best thing to do would be seeing a local doctor for examination since there is a possibility that what you are having now isn't related to the chair incident