Yes, what you describe are common side effects for some folks from antidepressants when you first start treatment. They generally resolve within a week or two for most people.
These side effects are caused by your metabolism adjusting to the medication so a slower increase such as every other day for a short while may make things go more smoothly.
PS, I took Effexor for over 7 years and loved it. I hope it works well for you too.