Car dies while driving?

Engine Mechanical problem
1993 Honda Accord 4 cyl Front Wheel Drive Automatic 160kms miles

hello. I've got a 1993 honda accord ex with 160,000 kms on it. Its been a great car, but recently its been acting funny. About a month back my thermostat needle went up almost to the top. I checked the coolant level, which seemed to be a bit low. Added coolant and the car ran ok, but the thermostat would rise from time to time. I don't see any signs of leaking or any coolant smell either. Then (and this is probably not major) my 'rear brake' lamp turned on. I looked to see if the rear lights work and they do.
so finally about 2 weeks ago, I was driving (50kms/hr) and the engine light went on( as well as the oil and battery light). I lost power and had to drift to the side of the road. I tried to start the car again, but it wouldn't. It was cranking just fine, but not starting. After waiting a few minutes I tried again and it worked.
kinda weird. So this happened to me about 4-5 times in a week. I've looked online for advice and seems that I need to get a diagnostic done, which I will do tomorrow.
but from all i've read, these kind of problems seem to be hit and miss. A bit frustrating, but I understand its complicated.
anyways, I was wondering if the above mentioned problems could be related and cause the problem. Any advice would be greatly appreciated.
thank you