DS1 is ebf with the occasional bottle at night and for the last few days has been all over the place with his feeding. Normally he's 3 hours between feeds during the day but last few days he's started crying and fussing when offered the boob and will eventually feed later but he's gone 5/6 hours between some feeds. He's feeding during the night as normal. He seems happy and alert otherwise with plenty nappies but in a 24 hour period he's only fed 5 times rather than 7/8 in last couple of days. Is this normal?