A C182 pilot on initial climb at night reported temporary loss of control due to spacial disorientation.

Narrative

Aircraft X - During climb out I was distracted by other things in the cockpit (autopilot not engaged) and looked up to see the aircraft position on the GPS not what I expected; so I applied control inputs to correct it. The aircraft seemed to be responding differently than I expected; so I continued to try and maneuver by reference to GPS position not instrument indications. The aircraft continued to 'wander' as I climbed due to my inputs; at some point my senses told me the aircraft was not doing what the instrument said; around 5000 feet I noticed the sound of wind increasing and saw the altitude dropping; airspeed increasing; and compass moving very fast; felt like my head was spinning. At that point I applied the 'attitude indicator INOP unusual attitude recovery' process and regained control of the aircraft. The aircraft recovered 700 feet below assigned altitude 2 miles and 45* off course. The maximum flight path deviations I noticed were 160mph; 50* bank; 20* pitch down. ZZZ ATC asked if I needed assistance; and indicated I was at 4300MSL. After recovery I climbed back on course and altitude and continued the flight uneventfully. I believe complacency and poor instrument scan lead to spatial disorientation; which was corrected by training in unusual attitude recovery and return to good instrument scan practice. No malfunction with the attitude indicator was found.