Should I IRRRL Refi my VA loan?

[Kevin Phu]

I have had my SFR for about a year now. I am house hacking it (renting out two of the bed rooms). With that additional rent income, my overall out of pocket living expenses are less that what I was paying for just apartment rent. My VA loan is with a 3.625% rate right now. Would it make since to look into an IRRRL refi into a 5/1 ARM to further lower my expenses and with the exit strategy of selling the property close after a few years to reuse my VA loan for a bigger property (MFR)?