I would suggest you ask your Pharmacist or whoever supplies your Lipotrim. Are you having pain - if so get yourself to A&E.
One thing it could be, as I have noticed it myself since starting low-carbing with food, is you may have lost some weight, therefore feel more energetic, so you move more, or move quicker and do more things, and your body (still being overweight) is needing to cope with this extra activity it is not used to. Perhaps try to take it easier, but still get advice from a professional.