I'd definitely give them some if you have it spare-failing that give them some syrup. How is the Queen performing? Good brood pattern? Quiet? I had a swarm that I had in a five frame foundationless nuc for five months-they just weren't drawing much comb, good brood pattern but not much of it, no stores-I decided to re-queen and the difference is incredible. I'm not saying race out and re-queen I'm just saying assess her to see if she is meeting your goals. Whatever you do though give her the opportunity to prove herself. Maybe you could throw in some frames of capped brood or combine a queenless hive/swarm/cutout with her too