Does Putin have nightmares about Himars?

Vladimir Putin keeps his thoughts and worries about his war in Ukraine to himself, except when he lashes out and sacks a general or an admiral for failing to get the battle wrapped up. But one thing is for certain, the Russian leader must be having nightmares about the American Himars rocket system which more than any other weapon provided by the US is hitting the Russian operation very hard, every day. Weeks back, or was it months, Russian officials such as Sergey Lavrov, the foreign minister, warned that if the US continued to provide weapons to Ukraine Moscow would regard this as American intervention and America would have to face the conseqences. But I can't recall Lavrov or anyone else bleating on about this for ages, even though the use by the Ukrainians of the Himars system has had a devastating effect on Russian armour and troop positions and ammunition dumps. The US has spent $10 billion so far on weapons to Ukraine which is a staggering amount in six months and it's one of the main reasons why the war in Ukraine has not gone Russia's way. Putin must be furious but he has realised that there is nothing he can do about it except play around with gas supplies to Europe because if he tries to disrupt the arms flow to Ukraine by attacking convoy routes from Nato east European countries he will face a war with the alliance. So he has to take the punishment. And it seems the Biden administration no longer cares about Moscow retaliation for the arms supplies. When the war began Joe Biden was all cautious about not being inflammatory but now he seems to have no concerns at all. Putin should be worried about that and the continued success of the Himars rocket system.