I Went From 162 To 183 Pounds On A Low

I went from 162 to 183 pounds on a low salt diet eat fruit vegetable drink plenty water have hypertension on lisinopril 20 mg lasix 40mg was on mobci 7.5 twice a day had to stop taking because i was retaining fluid had to take 80 mg lasix. Mu question is could their be another medical condition that cause the fluid retaining.