I noticed that my Macbook Pro was alarmingly hot (96 degrees Celsius hot, OW) and even though the fans were on full blast. So I decided to check Activity Monitor and it showed that almost all 8GB were used with significant page outs. This was odd as when I added up the system processes it didn't reach that number. Now restarting my computer (with all the same processes started up), there is only 3.5 GB RAM used with temperatures 50 degrees Celsius.
T_T
T_T