Last 2weeks tried to minimize salt intake (thought was taking too much).regular checkup a week ago showed sodium level of 132.due to low salt intake?

Here are some... By the reported sequence of events, relatively low Na+ is likely related to too less sodium intake. But is this the first time or long-term recurrent? Either way you need to follow your attending doctor's instructions and follow-up. Besides, it is useful to understand more features on how our body works for us as much described in articles on Best to health.