Do you work out? If so, I think you should definitely be eating more. I know calorie calculators are not extremely accurate but I plugged your stats into one on freedieting.com (I wasn't sure about your age so I put mine which is 23 lol) and I put "little to no exercise" just to see, and it says you could be losing on about 1,650. Sometimes it's just trial and error but I think this sounds like a good place to start- even higher if you exercise regularly.
I've been calorie counting for a while and I started out at 187 eating 1,500-1,600 calories and was losing steadily on that for about 30 lbs. Now, my weight loss has started to stall so I've dropped my calories to 1,400-1,500 and it seems to be working well so far.
Alot of people think 1,200 is pretty much the lowest one should go so I don't think that's a good place to start because if you begin to plateu you'll have no room to drop your calories to get jumpstarted ya know? Also, to me the simple fact that you are hungry all the time is a good indicator that you should eat more. I hope this helps a little, good luck!
