2 month old only happy in bouncy chair

[thiskitten]

My 2 month old only seems happy when she's in her bouncy chair thing.
The rest of the time she doesn't exactly cry but makes a blood curdling grunting / screeching sound.
She's not happy in a baby sling, she's not happy being held, she's not happy laying on her back or doing tummy time. She's happy when breastfeeding but the minute she stops feeding she's back to making the sound. She's sometimes okay in the pram when out for a walk, but often she's not.
I feel like the only way to keep her content is for her to spend all day in this bloody chair. But obviously I don't just want to leave her in a chair for long at all.
When my other DC was this age we used to do lots of lovely things and classes and walks etc. I can't do any of those things with her unless I want to have a baby screaming till my eardrums explode.
Help!

DS was like this a month ago - he turned out to have reflux. He's now on ranitidine 3 times a day and so much happier! Now spends most of the day wriggling under his baby gym and will even tolerate tummy time for a while. Worth a trip to your GP perhaps?

Added bonus: he has slept through the night 90% of the time since starting the meds too.