My eyes feel swollen and bruised plus I've had a dull headache for a couple of months some days worse?

See an eye doctor. Based on your description, this can be allergic or even caused by a mild infection. You should not have to suffer for this long. See an eye doctor; your problem can likely be resolved in one or two visits, with a minimum of discomfort.
Dry eyes. The most common cause of eye discomfort is dryness. Try lubricating tear drops. If this does not help, seek the care of an ophthalmologist.