Jo Lord. 16 yrs post-op

successful surgery, malabsorption has always been an issue, tertiary swallows are now out of synch, and over the past 45 days having problem in keeping some  food or liquid down, liquids will pour out if I lean over to tie my shoes, vitamin tabs are not staying down, iron anemia (ferritin) and D3 are low often as is magnesium.  I fear my inability to eat will make all vital nutrient levels fall.  Could it be the flap in the esophagus is not doing its job?