Need advice!!i know not pregnant but is what's happening normal

Abigail

Hey ladies so I've thought I could have been pregnant but all the test I've taken came back negative and so when my period came I understood but it's day 3 of my (period) and typically it still would be heave for the first 4 days atleast but day one I was working and I forgot to change my tampon and usually it would have needed changed not even half way through the work day.the next day the same but it didn't even fill the s+ like usual and today I went to change my night one and it had close to none in a regular .... all (yesterday)I've been wearing a panty liner and now today as well day 4 (I've also been sick and have been having a lot of different symptoms that I don't usually have since the end of last month Is this normal