Is it ok to take B12 with folic acid? please help.?

please read the whole paragraph. i have started to take B12 500mcg and folic acid 400mcg together? can i get upset stomach with these 2 vitamins? i have the gastritis so i take prilosec otc in the morning to reduce the stomach acid and i believe which causes B12 not to absorb properly and my hemoglobin level is 12.7 which is lower than normal. HCT IS 41.7 which is little lower than normal. RBC is 6.62 which is little higher than normal. MCV is 62.9 lower than normal. MCH is 19.2 lower than normal. RDW is 19.0 higher than normal. now does all this indicate that i am anemic? well i asked the lab person he says that i have little anemia but i believe its not iron deficiency because the RBC level is higher than normal. the lab guy said that i have minor thalimia so RBC's are smaller than normal and he recommended me to take B12 with folic acid and my questions are can i take take them together and why dont i need to take IRON tablets? why only the B12 abd Folic acid? thanks alot.