Symptoms?

So the last few days I’ve had some pretty good symptoms. It was like I hit 4w and boom there they were! Breasts were extremely tender, had a little nausea, extreme fatigue, my nipples had gotten larger.. Then, this morning I get up and I feel fine! My breasts aren’t really tender unless I feel to see if they are, I have no nausea and I’m only a little tired from being restless last night. Is this normal to have symptoms, then not? I’ve read it’s a sign of miscarriage?