Help with TDEE calculation

JulieAnn72

It seems like I have been changing up my calories goals every week lately! Last week, I was on vacation, so I had it really high. I had hit my goal before leaving on vacation, so figured when I got back, I'd just set it to maintenance on MFP. But I gained a half pound this first week on maintenance level and I'm realizing maybe I do want to lose another couple pounds. I was set to around 1650 calories this past week, and eating back calories. Today, I dropped it because I think I'm eating too many calories.

So, I just went back and re-calculated TDEE. I eat back my exercise calories (it's just easier for me to do it that way), so I set the calculator to little/no exercise even though I work out about 20-30 minutes 5 days a week, and burn around 150-250 calories those days. So here are my numbers:

BMR = 1252
TDEE = 1503
TDEE-20% = 1202 !!!!!

So two questions:
1. Isn't it odd to have a TDEE-20% number that's lower than my BMR? I wouldn't think I should really go back to eating 1200 calories, or should I???
2. I'm basically at an okay weight for me. I wouldn't mind losing a few more pounds so I stay under 135, which was my original goal weight, rather than fluctuating up and down. So would it be better to set my calories goal somewhere between TDEE and -20% instead of using the 1200?

Thoughts or advice? My exercise includes running 2-3 days a week and doing 2-3 days of various workouts on Fitness Blender and Workout Trainer that include upper and lower body workouts with 10lb dumbbells and abs/core workouts. My main goal is to stay between 130-135 and tighten everything up (reduce body fat %).

A note: If I factor in 5 days of exercising when I calculate TDEE, I get a TDEE of 1831 and TDEE-20% of 1465. Maybe I should use that and not eat back calories? I'm so confused!