Can i take vitamin d3 while taking a type of multivitamins+iron(stresstabs)?

See below: I know of no interactions between iron supplements and vit D supplements - you should look up the other supplements,and see if they interact with vit D3 - adequate vit D levels are necessary for many aspects of health-some get enough from sun exposure alone-but many need supplements- I would have your doc check vit D levels -then get a recommendation for dose-(600IU usual dose for your age)