Sleeping with contact lenses should not be done as it is known to cause corneal dmages like corneal abrasion, corneal ulcer
The symptoms you are having like redness
, watering, sensitive eyes all are indicating corneal problem.
You are supposed to use antibiotic eye drops and lubricating eye drops. I advice you to contact your eye surgeon at the earliest as your symptoms are pointing towards corneal damage following use of contact lenses overnight.