If your holding a family visit visa no need for a medical in the philippines just process your documents thru DHL and they know what documents needed in qatar embassy, actually there are different scenario and expereiences of our countrymen going here in qatar because there is no exact requirement what documents needed to pass thru immigration many people is offloaded because of this like one of my friend he has already complete documents with affidavit of support from embassy but still they want an affidavit of support coming from the company of the relatives who sponsored you and thats new, same from the other stories there looking for a pocket money for a family visit visa holder i thought it is only applicable for a person holding a tourist visa, my advise is be smart when your infront of the immigration officer and dont forget to pray. Goodluck