Failed again :( plus scared

Its been 3 months since we lost our baby please don't judge me. I wish I would be able to get pregnant again but is hard due to my thyroid. And is nothing again as just come on. I recieved letter to come for smear test but I ignored it and I just learned few days ago that my family is in generations known by cancer, etc skin cancer, bone cancer death on breast cancer and ovarian cancer. So tho I didn't wanted I booked appoitment. I am so scared as lately I had them bad signs etc feeling hot all the time, pain in lower abdomen, very tired, nausea...plus I never felt soo hungry I could eat 24/7 and that's not me because I use to have eating disorder I am so scared :(