Well, I got it why there is some difference coming into my account the reason behind that was nexchange.io 5$ giveaway thread they are saying that - on doing a transaction on their website they will reward users with 5$ bonus + 5$ extra for some extra activity on social media. That thread was deleted by mods due to a giveway i think and that is what causing difference in the numbers.
Ya, I know i can do much better than this but the reason behind posting in offtopic most of the time was my busy schedule and I don't want to lose activity points.
If the giveaway was made outside of its intended section (which is the Giveaway and Rounds sub), it would be deleted by the mod without warning and all users who commented on that thread wouldn't receive any message or notification as well.
Also, busy schedule isn't a valid excuse to blabber nonsense things around the forum. Well to each, their own anyway, I guess. You know the consequences too so why should I bother.