I recently purchased a home and I've been noticing my recess lights in the living room and in my kitchen have been flickering or dimming slightly for a few seconds and then going back to normal.. Does anyone why it's doing that and how can I fix the problem..I checked the recess lights and they look fairly new and look in good shape..I recently switched the light switch to a dimmer switch for the recess lights but it does share switches on the same outlet for other lights