Doctor's & Bloodwork 😢😑😡

I went to doctors last week & it went well. I'm doing fine babies great. passed my glucose test. she even said she will not give me steroids nor admit me into hospital like the sonogram dr at hospital said because its non sense. she said I'm just fine don't stress out but I need blood work done the sonogram doctor requested it but she knows I'm okay. I did not look at lab report at first, I had to rush home to get my sons off bus. so I went today, I looked at paper seen 4 test I didn't think it required much blood but when I got called in. the lady was sweet and said I'm sorry itll be a lot of blood. it was 12 tubes (not small ones either, all of this because the sonogram lady says I'm small n my baby is) she had me stay seated after because of so much blood that was taken from me. my husband drove me home asked me if I was okay, I let him know I wasn't feeling that well after I got blood drawn. my stomach started it hurting a little not bad it went away. I started to get a headache and felt dizzy. i made myself a sandwich and got ice water, then my 8 & 6 yr old start nagging me I want that and juice or water. their literally under me and its hot 100 ° and I tell them wait so they start up. I needed to sit my husband came down steps from changing our 1 yr old. told them to relax mommy need to sit down and relax dont do that. he handled them but I got upstairs and I just feel drained. my babies kicking which is great. I will do whatever to make sure my child is okay. I didn't have to go through this with my 3 boys they knew I was small but my babies were healthy. they said shes healthy but I gotta go through this. I feel its my fault, I go for sonogram tomorrow and I'm not looking forward to seeing this lady because I may get upset and tell her off I'm at that point because its always something just to get me back there. I pray the blood is good and she continues growing