I have been there and when DS was little the only person I would leave him with would be OH. That would be my suggestion is to start to leave him with your DH first, for just 2 hrs. Go somewhere, grab a magazine to help distract you and get a coffee.

My DS was feeding every 2/3 hrs at 11 mnths but when I wasn't there he was ok (I went back to work 3 days a week when DS as 11 mnths and OH looked after him those 3 days so I started the 'weaning' process earlier)

I know looking after your DS is your 'job' so that means you should be getting some time off just like you would if you were employed. On this 'job' you work 24/7 with no meal breaks and extra domestic duties added, all the more reason that it is OK to go get your hair done, have a coffee and meal in peace

We also produce love hormones when they are around... they are addictive too so it is normal for you to want to be with your DS all the time, you are hardwired for this, but it is good to let your village help especially if you have to go back to work.

the first time is the hardest and it does get easier