back onto full dosage of my meds

Since at least last summer, i've been off my meds.
On 1-1-2017, i took 1 pill with each being 200 MG of Lamotrigine( an anti depressant) and 1.5 pills with each being 100 MG( or 150 MG) of Sertraline HCl( another anti depressant).
Soon after, I became so nauseated that I had to puke.
We had to dial back and go slowly, so I don't puke again.
Even though I take my first full dose of anti depressents tomorrow, it'll be 6-8 weeks for my anti depressants to kick in.
In the mean time, my depression is able to cause serious havoc