We just bottled our first batch on Saturday. It was an Octoberfest and it looked and tasted "normal" before bottling. We dissolved 5 oz of priming sugar in boiling water, then dumped that in the bottling bucket and siphoned the beer in. Bottled and capped using a capper. My BIL put on in the fridge that day and opened after 3.5 days and got absolutely no head. Is this normal?