My bottled homebrew beer?

ok i added a small amount of crushed seeds of paradise i used simcoe i used northe4rn brewer as well i used some munich and additional steeping grains the twist to it is that i added blackberries that i blended and right before bottling i added boyseberry syrup! so was it the syrup that gave it the unusual look and foamy appearance on top of the bottles (the kind that you usually see when it is in fermenting at the top of youre fermenter while fermenting)~ its been fermented already or has it i checked on my bottles and it appears as if therte is a layer of sediment on the top level of were my bottles were filled to as well as the usual sediment that is on the bottom of the bottles! someone brought to my attention that there might be additional ferment after the bottling of this brew or is that just typical to most homebrews ! seems like its going through another serious ferment or a secondary ferment but please any experience or comments about this situation are appreciated!only serious experienced answers please!