The pair both failed to appear at two separate gigs this week as the live arena show moved across the country.
Abi was forced to pull out completely of last night's gig in Glasgow after being admitted to hospital.
It's not entirely clear what exactly happened to Abi but she took to Twitter after the concert to assure fans she was okay.
Abi said: “Unfortunately I will not be taking part in tonight’s show in Glasgow as I am in hospital.
"But not to fear as I am on the mend and hopefully will be back to it as soon as possible.
"I’m sure my fellow contestants will put on an excellent show x.”
Tamera was also forced to miss a tour date earlier in the week after also being taken to hospital.
The teenager - dating fellow contestant Sam Callahan - fell backstage and injured her foot.
"So Sorry that i couldnt perform the second half of the show tonight TeeBirds" Tamera tweeted to her fans.
Writing from her hospital bed a little while later, Tamera added: "No broken bones thank god ! but badly twisted ankle !"
Browse pictures of The X Factor 2014 tour in Manchester last month below...