Hi doc i am 6 weeks pregnant and every night i...

Gastritis and GI upset during pregnancy 
Pregnancy is a state of hormonal changes that affect many body parts including the stomah which manifist as stomch pain and burning due to the rise that happen in gastric acid under the control of pregnancy hormone. Its treated mainly using Ranitidine 150 mg tab twice a day and if not responsive you can take Pantoprazol 40 mg tab if needed. In addition you are adviced to take Pyridoxine tab once a day as it decrease the feeling of nausea. Consult your treating doctor if symptomes perisisted 
Required investigations 
In cases of GI upset during pregnancy there is no need to perform any diagnostic tests but if symtomes where so severe you should do pelvic ultrasound to confirm that there is no signs of molar pregnancy as its associated with more servere disease. In addition to liver functions AST, ALT ,ALP and stool h pylori AG test 
Causes 

• Hyper emesis gravidarum 
• Gastritis 
• Molar pregnancy 
• GERD

our advice
You are adviced to have a well balanced diet rich in vegetables and fruites. Drink fresh milk and Ginger extract , avoid smoking and caffiene products