Feeling so worried

I had a miscarriage in November and am now 6 weeks pregnant. Is it normal for symptoms to be not as strong or come and go? I have sore breasts but they aren’t as sore as two days ago.. I’m not as bloated today and the frequent urination has stopped. I am driving myself crazy but I miscarried last time at 6 weeks and am so upset with the lack of strong symptoms. I haven’t had any considerable nausea either. I’m constantly anxious and just so worried it’ll happen again.