ITA queries

[yoshitaas]

Hi,
Following are my queries as I have received ITA:

1. I have not claimed points for some work experiences, and thus did not mention them in my express entry profile, as they were not exactly matching the requirements under the NOC I am applying for. But I will mention them in my personal history section. Do I need to submit additional proof of experience letters, and other activities I mention in personal history?
2. Does travel proof have to be submitted for travel history section details?
3. In the work experience section, for the date I first became qualified to practice in this occupation, for which I have mentioned the NOC code, I mentioned my Masters graduation date, as I got WES evaluation for that. But the minimum qualification for the NOC is Bachelors, and I have also claimed points for a job during my Masters, and before my Masters graduation. Should I change this detail and mention the graduation date for my Bachelors, after I have received my ITA, or should I leave it as it is, and not risk any change? Does it affect my score?

Thank you