Separation anxiety?

Gemma

So the past 2 days my little boy hasn’t napped in the day no matter how hard I try. Think all together he had two 15 minute naps each day and then has been a nightmare to put to bed. I have him in a routine of he has 3 naps in the day. 10am-11:30, 1:30pm-3:30ish and then 5pm for 30 minutes. Then goes to bed around 8:30 sometimes earlier and he’ll then sleep all through the night until 6/7am. Everytime I put him down for his nap he wakes up instantly it’s as if he knows he’s no longer in my arms. I don’t want to make a habit of him taking his naps on me as I have jobs to do around the house which I do when he naps. When I put him to bed he usually stays asleep but the past 2 nights he won’t settle unless he’s next to me holding my hand. I’ve tried putting an item of clothing next to him that smells of me to see if that’ll help but he doesn’t like it. A friend of mine mentioned separation anxiety but surely he’s roo Young to be going through this? Any advice would be great!