Hello. I have weak immune system .i eat everything except non veg .mostly home foods no bad habits .all reports are normal .but still with changing environment I feel ill. My friend suggested me to take becadexamine multivitamin cap. And codeliver oil but should I take it or not and its capsule and I can't sallow capsule I do not know whats problem in me whatever I tries to sallow it remains there in neck and cough is all most of time (have done xray also it was clear) but everyday in morning & after eating I feel neck tarrifc I have to open my mouth for oxygen on that time .my weight is just 41 age 26 tried by many doctors now im taking choliv syrup .aptivate .or zincovit. But they r bit costly so can you suggest little cheaper rate medicine either syrup or tablets only .for strength ,brain ,weight ,immunity and confidence etc .so pls suggest which tablet with no side effect .cod liver / multivitamin. I have wasted lots of money in online & physical meeting from last 7 year so pls suggest me.