Molly Sims is currently pregnant with her second child, and while she looks healthy and in shape in her recent vacation photos, the model and actress says she wasn’t so lucky during her first pregnancy.

Sims spoke earlier this year about how hard it was to lose the large amount of weight she gained with her son Brooks, and said that despite her friends’ protests that she was pressuring herself too much, she saw a doctor only to find out she had a serious thyroid condition.

“My neck was….I looked like a football player. I kept asking people, I’m like, ‘I don’t feel right. Something’s wrong with me. ‘Oh, it’s your hormones. Oh, you just had a baby. Oh honey don’t worry about it. You’re in Hollywood and you’re putting so much pressure on yourself to lose weight,'” she told ABC News.

Eventually, after weeks of working out for hours at a time and seeing no results, Sims consulted a doctor who put her on medication for thyroiditis.

Family Fun #vacation #muchneededvacation

A photo posted by Molly Sims (@mollybsims) on Dec 12, 2014 at 10:12am PST

Me and baby beaching it! #bakersbay #bahamas @nataliemartincollection

A photo posted by Molly Sims (@mollybsims) on Dec 12, 2014 at 7:14am PST

Sims announced her second pregnancy in September, saying she feels blessed to have her family.

“I can’t even [begin] to explain just how excited we are for a new baby. We are so, so, so blessed as a family, and I’m speechless at the fact that we have the opportunity to bring a second bundle of joy into the world,” she said.