Is it normal to take 3 shits a day?

Yes easy. I shit 3 to 6 times a day probably. I mean I would bet my life to say I eat at least 3 times as much as you so so still should maybe be concerned.

What's "massive"? I'd only call a shit that if it actually blocked the toilet.

People vary in the number of bowel movements they have, but I recall reading a long time ago that some scientists believed that those who empty their bowels more frequently are less likely to get bowel cancer. It might be because they eat more fibre, or it could be that holding decaying food in your colon for a long time doesn't do it any good.

One thing is sure: if you were to keep a careful record of the weight of the food and drink you consume and also weigh what comes out the other end, the latter number would pretty much match the former. (What you excrete in urine and faeces would be a little less due to water loss via respiration and perspiration.)

It is the work of the shit fairy.

If you eat laxatives!

i do it once a week maybe eat more fish

Regular bowel movements are perfectly healthy.

Sometimes 4 shits too