and i think this shaheed thing is mentioned in Quran twice or so, and at no place i could find "they eat, wear and drink the way you do, only that you cant see them" could u please tell where is that???
Think not of those who are slain in Allah's way as dead. Nay, they live, finding their sustenance in the presence of their Lord; They rejoice in the bounty provided by Allah. And with regard to those left behind, who have not yet joined them (in their bliss), the (martyrs) glory in the fact that on them is no fear, nor have they (cause to) grieve. „
—Qur'an, 2:214
In case you missed, sustenance means
1 a: means of support, maintenance, or subsistence : living b: food , provisions ; also : nourishment
2 a: the act of sustaining : the state of being sustained b: a supplying or being supplied with the necessaries of life
3: something that gives support, endurance, or strength