question on weight gain

Nysportsred

I have lost close to 50 pounds the last 2 years. I do not lift weights due to a neck problem I have, but I do the elliptical, zumba, and other forms of cardio.

Recently I added crunches to my work outs. I do 300-350 everyday I work out which is 5 days a week.

I have been doing a good job of keeping under my daily calories, but over the last few days I have noticed my weight has gone up 4 pounds in 6 days. I realize this is not likely and there are a few factors that maybe contributing, but I wanted to get others opinions.

1. started a new job so went from a midday shift to a morning shift which has changed what time I go to sleep and what time I wake up

2. perhaps some subconscious stress from the new job?

3. the 1500 crunches per week added to work outs.

I go over my calories usually once per every 7 days so my body does not get used to the caloric intake.