FTM with rainbow baby after 2 miscarriages am I over thinking or has anyone ever gone through this

Tara

Ok so we are 8 weeks pregnant as of yesterday due 6/27/2018 I had an ultra sound 11/6 and they said it looks good and our heart beat was 136 when I first found out I was pregnant 10/13 I felt so many more symptoms than I do now .. ie headaches almost everyday before now not as much but sometimes there. Backaches are still pretty consistent my chest is sore and worse in the mornings before I noticed it all the time ... I used to cramp like at least once every 4 hours but only mild and now it is not even really noticeable if I ever get it . I am constantly cold and this hasn’t changed my nose still runs ... I have an appointment 12/13 and have called into my doctor to voice my concerns I just hate feeling like I don’t feel anything it is scaring me I have no morning sickness nothing but I do get very light headed when I stand up sometimes

I bought a fetal Doppler and I think that could have caused some of my light brown spotting I am having now so I am not using that for a while but I was able to find the heart beat myself.. just hoping someone can ease some of my worries and frustrations please help !!!