No, your followers won't able to see what you see or search on Instagram. Moreover you can like any uploads, and search your liked page ,people and your follower's won't able to see your path. My humble suggestion to you please see the private and security policy of Instagram you get more information about their products. Enjoy :)
Data limits. Data collection limit. Every user interaction can be sent to Analytics as an individual hit, including (but not limited to) each pageview, screenview, event, and ecommerce transaction. As a result, a single session can result in many hits.
SQL limits. The following tables describe certain SQL and database limits imposed by the DB2Â® for i database manager. Note: System storage limits may preclude the limits specified here. For example, see Maximum row sizes. A limit of storage means that the limit is dependent on the amount of storage available.