My husband age 76 had hernia operation on Oct 21st they had to go in and remove mesh on Oct23rd, he had violent vomiting and nausea after the first operation, hence the second. Tonight he started vomiting again, he had taken 1 hydrocodone 10m around 3pm today, said he was hurting and had a headache, could that be causing his nausea now? Also, he has swelling in his feet , has CHF and a pacemaker plus he is diabetic