What medications help anxiety and retaining water??

Anxiety : Anxiety and fluid retention are not related entities. Many women report fluid retention as a PMS symptom along with mood disturbances and anxiety. OTC's may help. Meditation is the single most powerful tool for controlling your stress response. Herbals like valerian, lavender, St. John's Wort and chamomile may help. Rx meds include buspar, SSRI's and benzodiazepines carry risk of adverse effects.

Diuretic and SSRI: those complaints don't sound related, so i would suggest a work up of both symptoms and treatment of them separately. Diuretics are for high BP but also excess fluid. SSRI's are for anxiety and depression. Hope that helps!