Hi Jennya. I’m on 15mg lenalidomide and have been for about 6 months, 25mg for a year before that. I’m usually driving so don’t notice travel sickness but I did feel a bit that way on the train recently. However I’m on a cocktail of heart drugs as well, with low blood pressure, so I can’t necessarily blame lenalidomide! I am prone to more light headedness when I have just started a new cycle of lenalidomide. Not sure this helps you! The effects of these drugs seems to vary by individual