Can GERD and Anxiety Cause constant nausea?

Im not pregant just had period. But I been getting nausea alot lately im not sick or preganant. I do have IBS,GERD,ANXIETY,PANIC ATTACKS,EMTEPHOBIA. Can these cause nausea to occur often and apetite loss?? Also stomach cramping.. AGain I know Im not SICK NOR PREGNANT. Just got off my period.. Thank.
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